In early times, teachers often use the traditional aids, which mainly include blackboards, models and charts.

Some cleaned the blackboards, others mopped the floor.

有些人擦黑板, 有些人拖地板.

How many blackboards are there in this room?

在这个房间里有几块黑板?

New blackboards have been fitted up in all the classrooms.

教室里都安装上了新黑板.

Unlike other aircraft, blimps do not need to form a precise aerodynamic shape.

这种小型飞机与其他飞机不同, 它不需要由精密的气动力模型构成.

From ball games to bathrooms to blimps.

从球游戏到浴室到软式小型飞船.

If they stop , the blimps switch to a doomsday program.

使得飞行船上的程式启动那该怎么办?

Megan Wade , who did extensive editing and fixing of spelling, grammar, and other bloopers I committed.

MeganWade大范围编辑和修订我的拼写 、 语法和其它杂乱之处.

But some questions can make you seem ill － prepared, overeager or disagreeable. Here, eight commonly asked bloopers.

但有些问题会使你显得准备不足 、 过于心急或令人生厌. 下面是8个常犯的错误.

Radio and TV sports running commentators occasionally come out with some bloopers.

无线电和电视的体育节目实况广播员偶尔会说错一些话.

And the box lunches had been arrived later, I took the boxand devoured ravenously.

午饭也随后送到, 俺接过凉风领来的盒饭狼吞虎咽的吃了起来.

Have you got the box lunches ready for us?

您为我们准备好了盒饭 吗 ?

Before blow-drying , you should use a flat comber to de-tangle locks.

在吹干之前, 你应该先用平梳子把打结的部分梳开.

Blow-drying replace the old method of putt curler into wet hair.

边吹乾边吹发型的方法取代了湿发上卷子的老方法.

Physical damages include photodamage , combing, blow-drying and some mechanical damage.

影响头发的物理性因素主要有日光 、 梳理 、 吹风以及一些机械性损害等.

Blow-drying replaced the old method of putting curlers into wet hair.

边吹干边吹发型的方法取代了湿发上卷子的老方法.

This paper generalizes and discusses the application of the formation testing techniques in boreholes.

本文对裸眼井地层测试技术在油田中的应用做以归纳论述.

This paper describes the substance a theoretical study on determination ofrockmass stress by parallel boreholes method.

阐述了平行钻孔法岩体应力测试的实质及以往的原岩应力推算方法.

The correctness of the result was proved by some underground boreholes.

经过少量的井下钻孔验证,证实了结果的正确性.

If they carry on sinking boreholes then the land is likely to subside.

如果他们继续钻洞，地表很有可能下沉。

Male and females bluebirds both have orange breasts.

雄性知更鸟和雌性知更鸟都长着桔红色的胸脯.