heavy的用法：
1.重的；沉的
She was struggling with a heavy suitcase.她正費力地拎著一只沉重的手提箱。
2.(在數量、程度等方面)超出一般的，比一般嚴重的
There was heavy fighting in the capital last night.昨晚首都發生了激烈戰斗。
3.大而結實的；不精致的
He was tall and strong, with heavy features.他長得高大壯實，濃眉大眼。
4.充滿，滿載(某物)
The air was heavy with the scent of flowers.空氣中彌漫著濃郁的花香。
5.工作(或活動)多的；繁忙的
She'd had a heavy day.她忙了一天。