Its main role is to control through laws and use of traffic signals so that vehicles in an orderly manner away from conflict zones, it is a compulsory means to solve traffic jam.

它的主要作用在于通过有规律的控制和运用交通信号使得车辆有秩序地驶离冲突区域，是解决交通拥挤的一种强制性手段。

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They have compulsory military service, that means every young person must go into the military for a while.

他们有义务兵役制度，这意味着每一个年轻人都必须服役一段时间。

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Custody is concerned with limiting suspect and defendant's freedom, is the important means to guarantee the investigation and try going on smoothly, and is the most severe kind of compulsory measure.

羁押是限制犯罪嫌疑人和被告人人身自由，保证侦查和审判顺利进行的重要手段，同时羁押也是最严厉的一种强制措施。

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"The decision means that the way has been paved for compulsory licenses to be issued on other drugs, now patented in India and priced out of affordable reach, to be produced by generic companies and sold at a fraction of the price, " said Leena Menghaney of medical humanitarian aid organization Medecins Sans Frontieres.

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"Most importantly, the decision means that the way has been paved for compulsory licenses to be issued on other drugs, now patented in India and priced out of affordable reach, to be produced by generic companies and sold at a fraction of the price, " said Leena Menghaney, India manager of its advocacy program which pushes for greater access to lifesaving medicines.

WSJ: India Rejects Bayer's Nexavar Plea

Also, foreign languages have now been compulsory in the secondary school curriculum since 1992 and the literacy strategy means primary school children are now more familiar with the rules of grammar.

BBC: Parlez-vous francais?