Your key is in your schoolbag
钥匙───key;书包───a bag
The key has stuck in the lock.───钥匙卡在锁里了。
The key doesn't fit the lock.───这把钥匙打不开这把锁。
His contribution could be key.───他的贡献可能是最重要的。
I think refining the compounds in terms of the balance of their activities is really key, but that's not to say that's trivial .───我认为,以平衡药物各项作用的方式来改进化合物的确是关键,但是这并非小事,它需要时间。
The source also said that Danyang Zhao has been low - key, so the matter entirely out of personal growth in the course of a pursuit.───该人士同时表示,赵丹阳向来低调,做这件事完全出于个人成长过程中的一个追求。
A key turning point for the global casino sector took place in 2006 when Macau gaming revenue beat that of the Las Vegas strip.───2006年,澳门博彩业收入超过拉斯维加斯,世界博彩业发生了重要转折。