heavy的用法：
1.重的`；沉的
She was struggling with a heavy suitcase.她正费力地拎着一只沉重的手提箱。
2.(在数量、程度等方面)超出一般的，比一般严重的
There was heavy fighting in the capital last night.昨晚首都发生了激烈战斗。
3.大而结实的；不精致的
He was tall and strong, with heavy features.他长得高大壮实，浓眉大眼。
4.充满，满载(某物)
The air was heavy with the scent of flowers.空气中弥漫着浓郁的花香。
5.工作(或活动)多的；繁忙的
She'd had a heavy day.她忙了一天。