Crankcase oil types
[建] 曲轴箱用油的等级
🧩 词语组成解析
n. 曲轴箱\\n[建] 曲柄箱
oil
[ɔɪl]
n. 油;石油;油画;燃油;
vt. 给…加油;
vi. 化成油;
v. 打字（type的第三人称单数形式）
🗣️ 情景例句
I have been talking to a group of salesmen
我一直在与一群推销人员谈话
Do you remember the boy whose aunt is an actress.
你是否记得那男孩的姑妈是演员？
That fits the puzzle! It must be him!
这符合谜底，肯定是他。