Servants, except when summoned, must never be visible.

She always goes to school by bike except when it rains.

除非天下雨,她总是骑自行车上学.

He never came except when he was in trouble.

除非有了困难,他从来不到这里来.

He won't work except when he is pleased.

只有在高兴时他才会工作.

He's ready to offer his help except when he's busy.

除了忙的时候之外,他是愿意帮助人的.

My uncle is a good driver except when he's worse for drink.

我叔叔如果不喝醉酒的话是个好司机.

He said he didn't know how to swim but would take a crack at it.

他说他不会游泳,但将尽力尝试.

I decided to take a crack at photography.

我决定试试摄影.

I would like to take a crack at the Olympic title again before I retire.

我想在退役前再尝试冲击一下奥运冠军.

I'll take a crack at it.

我会尽力干的.

To control the preparation and maintenance of submissions to regulatory authorities for all targeted market areas.

管理在所有目标市场向法令机构递送的准备和维护.

And whatcha gonna do when Hulkamania runs wild on you?

当霍肯在你面前抓狂的时候你还能怎么办?

What in the name of heaven'sgoing on?

看在上帝份儿上，这到底是怎么回事？

We're very glad to greet you in the name of the Chinese people.

我们非常高兴以中国人的名义向你们致意.

In the name of common sense , what are you doing?

你究竟在干 什么 ?

Esteban, in the name of his brother, was married to the girl.

埃斯特朋用他哥哥的名义, 跟这姑娘成了亲.

They go with a resolution of self-sacrifice in the name of Bethune.

为了白求恩,他们抱着自我牺牲的决心出发了.

The preparation of macroporous carbon materials containing Pt nanoparticles was investigated.

研究了负载铂纳米粒子大孔炭材料的可控制备.

Both of dispersed and supported Pt nanoparticles are important catalysts.

分散型铂纳米微粒和负载型铂纳米微粒都是重要的催化剂.

Firstly, Co ferrite nanoparticles were prepared with the method of solid-state reaction.

首先采用低热固相法制备了球形磁性纳米粒子钴铁氧体.

We also study optical properties of AuAu core-shell nanoparticles .

此外,论文也讨论了复合结构的 金属纳米 颗粒的光学性质.