A chemical messenger is, at least, a " double agent ". It attracts some species and repels others.

A double agent on the run.

关于运行双重间谍.

When the Soviets arrive, Mac reveals that he lied about being a double agent.

当苏联抵达, 陆委会透露,他说谎是一个双重间谍.

The double agent was blown by the other side.

这个双重间谍被另一方告发了.

It is possible that Ransome was a double agent, also in the Russian service.

Ransome很 有可能是一位同时为俄国服务的双重间谍.

The story blew their cover ; The double agent was blown by the other side.

报纸对不合格的药品进行了暴光.

We drove past it and had to double back.

我们开过了，不得不原路返回。

Double back the paper and tear it in half.

把纸对折,撕成两半.

They sent them all the way out east and then they had to double back.

他们一路送我们东行,然后得再折回来.

The road ahead is flooded so we have to double back.

前面的路已遭水淹,我们只好原路折回.

The road ahead was foolded so we had to double back.

前面的路有水我们只好原路返回.

If you double back the blanket, it will be more comfortable.

如果把毯子叠起来会更舒服.

He told me to double back the sheet of paper and tear it in half.

他告诉我把纸对折然后撕成两半.

The teacher told Tom to double back the sheet and tear it in half.

老师告诉汤姆把床单撕成两半.

He had to double back after he lost his keys.

弄丢了钥匙,他不得不原路返回.

I will pass it on pain of a rainy night, double back to the mother!

[翻译——我会将那日雨夜所承受的痛, 加倍的还给母亲!哼,将她,伤害的遍体鳞伤] 我 在心中,默默的说道!

This isn't the right way; we'll have to double-back to the crossroads and try again.

这条路不对, 我们必须往回走到十路口,然后财试试看.

Nguyen pronunciation deep bass and low Hou, like the Double Bass in the Western musical instrument.

低音阮发音深沉而低侯, 犹如西洋乐器中的低音提琴.

Double Bass Screen Saver , This screen saver displays changing pictures of double bass.

这个屏幕保护程序显示低音提琴的改变画.

An instrument, especially a double bass, that produces tones in a low register.

低音大提琴是弦乐器中最巨大及最低音的乐器, 直接由倍低音[维奥尔]演变而成.

This passage could be performed by three bass viols or even a double bass.

这一段可以用三部古低音提琴或者低音提琴来演奏.