John selected a card from the rack.

约翰从架子上选了一张贺卡。

The old house soon went to rack and ruin.

这所旧房子很快就毁坏了。

Japan is racking up record trade surpluses with the United States.

日本与美国的贸易顺差正在创新高。

He had to rack his brains to solve that complicated problem.

他不得不绞尽脑汁去解决那个复杂问题。

I’ve been racking my brains all day trying to remember his name.

我一整天都绞尽脑汁，想要回忆起他的名字。

Put your bag in the luggage-rack.

把你的包放到行李架上。

Conscience racks me.

我受备。

The pain racked him.

痛苦折磨着他。

She was racked by doubts.

她满腹疑虑, 痛苦极了。

He was racked with pain.

他受疼痛之苦。

He was racked by remorse.

他悔恨交。

A toothache racked my jaw.

牙疼使我的下巴难受极了。

As a result, the pests would be on the rack and agonizing or even have the symptom of swivet and twitch.

★ 除驱鼠外，还可驱赶蜈蚣、蟑螂、蜘蛛、跳虫，尤以驱鼠效果最佳。

Based on launch system,electropult currency property technology is analysed simply,which is one of the key technology of aerial defence missile sharing-rack launch.

以发射系统为背景,浅析了防空导弹共架发射关键技术之一的发射装置通用化技术。

It consists of main decoiler, assistant decoiler, guide rack, foming machine, forming mould, flatting device, punching device, cutting-to-length, collection table, electrical control， etc.

设备由主放料架、副放料架、导向机架、成型主机、成型模具、校正机构、冲孔机构、切断部分、收料台、电器控制部分组成。

The agriculturist, Wang Chen-ho creations of wood for insertion of success, he also invented the punner racks, with a simple machine, increasing the efficiency of the typesetting.

到了元代，农学家王祯创制木活字成功，他还发明了转轮排字架，用简单的机械，增排字的效率。

This paper introduces the method of simple conversion measuring and calculation for gear rack thickness with depthometer as prime measuring tool and Measuring Pin,measuring ball as auxiliary tool.

介绍了以深度尺为量具,以棒、球为辅件的齿条齿厚简易转化测量与计算方法。

An intelligent clothes rack is developed with a block installed on the end of each knighthead,around which steel wire is enwind and connected to a DC motor and the clothes rail.

智能晾衣架的机械部分是在普通拉杆式晾衣架两支撑杆的端部各安装一个滑轮,再穿入钢丝绳。