唯一的问题就是大量水草阻塞了水道。Large, clogging banks of weed are the only problem.他看见水牛潜到水下逐食水草.He saw buffaloes dive beneath the floodwater to nibble grass.他的钓鱼线缠在水草上了.His fishing - line fouled the weeds....
The contract will come into effect upon signature.此合同将在签字后生效.When does the new timetable come into effect?新的时刻表什么时候实行?The new law has come into effect.新法律已经实施....