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。