coul
常见例句
- I'm sure you coul spend more time preparing for those.
我敢肯定你需要花很多的时间为那些测验准备。 - She coul not deny the justice of Darcys description of her sister.
她不能否认，达西对她姐姐的描述是公正的。 - With chemical oxidizing and subsequently paint ing of aluminum and its alloy, adhesion of aluminum substrate with coatings coul d be greatly improved, as well as corrosion resistance.
铝及铝合金化学氧化后涂漆，可大大提高基体与涂层的结合力，并增强铝材的抗蚀能力。 返回 coul