You apply a force and the material will resist it until you have a force great enough to break the chemical bonds.

你施加一个力，材料就会抵抗它，直到你有一个足够大的力来打破化学键。

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This chemical mimics the effects of emotional or physical stress by increasing the force of heartbeats and boosting the flow of blood in the body, which can lead to permanently raised blood pressure.

多巴酚丁胺这种化学药品通过增加心跳力度以及加速血液在身体中的循环来模拟情绪或身体压力带来的效果。

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People should more cherish the Chemical Weapons Convention (CWC) that was concluded 12 years ago and entered into force 7 years ago, while comparing the past with the present.

抚今追昔，人们更应珍视12年前缔结、7年前生效的《禁化武公约》。

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Late on Wednesday, the office of the UK's prime minister said David Cameron had agreed in a telephone call with Mr Obama that the use or threat of chemical weapons was "completely unacceptable and would force them to revisit their approach so far".

BBC: Chemical weapons 'excuse for US to intervene in Syria'

The main treatment is injections of a chemical to cut levels of testosterone - the driving force of many prostate cancers - but it causes side effects.

BBC: Skin patches 'tackle prostate cancer'

Instead, he started his own company and spent the next few years buying and selling a weed killer from Helena Chemical, competing with Helena's own sales force for meager margins.

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