extra-heavy的用法和样例：
例句
- This Brand of insecticide is of extra power.
这种牌子的灭虫药剂，功效特强。
词汇搭配
- extra heavy fruit juice syrup 特浓果汁糖浆,浓缩液...
- extra heavy frame 特重车架
- extra charges on heavy lifts 超重货物附加费...
- extra heavy 超重的(超功率的)...
- extra heavy spring 特重型弹簧
- extra heavy pipe 特重管,粗管...
- extra heavy duty 特重载
- extra heavy concentration 特高浓度
- extra-heavy drill rod 加重钻杆
- extra heavy duty truck 特重载重车
