U-tube
[化] U型换热管
🧩 词语组成解析
🗣️ 情景例句
She's right.
她说得对。
The man is drawing blueprints for a new house.
这个人在设计新房屋的蓝图。
a moment later, he ran after me and thrust the pen into my hands.
一会儿，他突然从后追了上来，把笔塞到我手里。