Should follow the principles of existing laws and regulations, and properly handle the difference between "black contract" and "white contract".

应在现行法律法规规定的基础上，妥善处理“黑合同”不同于“白合同”的约定。

youdao

Sign the contract in blue ink, not black ink. This, too, will make it easier to differentiate the signed original contract from photocopies.

最好用蓝墨水而不是用黑墨水来签署合同，因为蓝墨水可以很容易地让人区别出哪个是合同正本，哪个是影印副本。

youdao

Based on it Aero will become a supplier of the cockpit for the legendary military Black Hawk helicopter. The contract is concluded until 2017 with possibility to extend by further 5 years.

基于此合同，Aero成为传奇直升机——黑鹰直升机驾驶舱的供应者。

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Indeed, this unprecedented interest in the Black Stars is in stark contract to the situation prior to World Cup qualification.

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The 25-year-old midfielder played just twice after joining the Black Cats on a three-year contract last summer.

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Sabres president Ted Black said the team will honor the contract extension it reached with Regier in January.

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