Expansion soefficient
[机] 膨胀裂痕
🧩 词语组成解析
🗣️ 情景例句
OK, what do you need most of all?
好， 你们最需要的是什么？
The devil is not so black as he is painted.
魔鬼不像所描绘的那么黑。
This time it was the postman and he wanted me to sign for a registered letter!
这次是邮递员，他要我签收一封挂号信！