She left her children behind with a heavy heart.

　　她十分難過(guò)地丟下了她的孩子們。

　　The equipment is slow and heavy by modern standards.

　　按現代標準，那臺設備又慢又笨重。

　　There was heavy fighting in the capital last night.

　　昨晚首都發(fā)生了激烈戰斗。

　　The discussion got a little heavy.

　　討論變得有點(diǎn)嚴肅。

　　That bridge is too weak for heavy traffic.

　　那座橋不太牢固，承受不住過(guò)多的車(chē)輛。