Sub-fertility was defined as failure to conceive for at least a year after initiating unprotected sex with the goal of conceiving.

Unprotected sex with HCV-infected persons;

与丙肝病毒感染者进行无保护性接触；

But safe-sex groups add that the unintended results of unprotected sex pregnancy and sexually transmitted diseases can put quite a damper on mood.

但性安全团体补充说，不安全性行为导致的意外结果和性传播疾病会让人变得十分沮丧。

Around 50 percent of the men have human papillomavirus ( HPV) which often goes undetected and is easily passed on during unprotected sex.

约50%的男性都感染有乳头瘤病毒（HPV），该病毒往往被男性忽视，性行为时若未采取保护措施很容易传染给他人。

The Anatomy of a big night out survey reveals that 34% of young women have had unplanned or unprotected sex after drinking too much.

这项名为外出彻夜狂饮的分析的调查显示，34%的被调查年轻女性在饮酒过量后曾经与人发生过计划之外或无保护措施的性行为。

Football fans could put their health at risk during the World Cup this summer by drinking too much and having unprotected sex, a charity has warned.

英国一家慈善机构日前警告说，在今夏世界杯足球赛期间，球迷们可能会因为酗酒和不安全性行为而受到健康威胁。

46.1% and 58.1% had unprotected sex behavior with clients and steady sex partners in the last month, respectively.

在最近1个月内与客人和固定性伴发生非保护性性行为的分别为46.1%（152/330）和58.1%（61/105）。

Sex workers are at high risk of contracting HIV and AIDS& unprotected sex is the primary method of spreading the disease.

性工作者是高风险感染艾滋病毒和艾滋病，保护措施的性行为是主要的方法，传播疾病。

When it becomes more troublesome to get an abortion, teenagers seem to cut back on unprotected sex.

一旦堕胎变得更麻烦，未成年人似乎就会减少无防护措施的性行为。

You can get an STD any time you have unprotected sex.

在任何无防护措施的性行为中你都有可能感染性病。

Analysis on the factors of unprotected sex behavior among female sex workers

暗娼非保护性性行为的影响因素分析

The definition of infertility is the inability to conceive after one year of unprotected intercourse. It is one of many risks that come with unprotected sex.

不育是指在无保护性行为一年后仍不能怀孕。未加保护的性行为除了增加意外怀孕的危险。

Several other studies have shown that people taking their drugs regularly are more than 90 percent less likely to infect others, including spouses with whom they have regular unprotected sex.

另外的几项研究显示，定期服用药物的人把病毒传染给其他人包括经常与他们有无保护性行为的配偶的可能性降低了90%。

The conditions for bartering are worked out in advance, and the reciprocal arrangement helps visits run smoothly.

以物易物的条件已经预先制定，而互惠互利的安排有助于创造良好的入住体验。

They are high-level reciprocal visits, bilateral economic ties and investment, and people-to-people communications. They have deepened mutual understanding and trust, and bilateral benefits.

这三座桥梁即高层互访、双边经贸和投资以及人文交流，加深了双方的互信、互利和理解。

Both sides welcome reciprocal visits of the NASA Administrator and the appropriate Chinese counterpart in 2010.

双方欢迎美国国家航空航天局局长和中方相应官员在二0一0年实现互访。

Both sides welcome reciprocal visits of the NASA Administrator and the appropriate Chinese counterpart in2010.

双方欢迎美国国家航空航天局（NASA）局长和中国航天部门的负责人2010年进行互访。

Lots of suggestions were put forward, including two extremely bankable young American stars: leonardo DiCaprio and Matt damon, along with a slightly older one, Tom cruise.

很多建议被提举出来，包括两个非常有投资收益潜力的年轻美国演员：莱昂纳多和马特达蒙，还有稍微大一点的汤姆克鲁斯。

For "The Martian" star Matt Damon, this was his second largest opening ever behind "The Bourne Ultimatum" ( 69.2 million dollars) and ahead of "The Bourne Supremacy" ( 52.5 million dollars).

《火星救援》是由马特达蒙主演，这部电影也是他在《谍影重重》（6920万美元）之后创造的第二大开幕票房额，同时成功超过了《谍影重重2》（5250万美元）

Sitting in a dark movie theater, leaning forward with your eyes fixed on the screen and hands clenching the edge of the seat, you hear the couple behind you whisper: Is that Matt Damon?

坐在漆黑的电影院里，双眼紧紧盯着前方的屏幕，双手紧握座椅的把手，你听到你身后的一对窃窃私语：那是马特达蒙吗？

Matt Damon and his wife, Luciana, took a stroll with their youngest daughter, Stella, in LA on Friday.

马特达蒙和妻子卢西安那周五带着他们的小女儿史黛拉在洛杉矶街头散步。