heavy的用法：
（1）These scissors are awfully heavy
這把剪刀太沉了。
（2）How heavy are you?
你有多重？
�。�3）It is advisable to mix coarse grit into heavy soil to improve drainage.
建議將粗砂摻到黏重的土壤里，以提高排水性能。
�。�4）The air is heavy with moisture
空氣的濕度很大。
（5）Her breathing became slow and heavy.
她的呼吸變得緩慢而粗重。