Passameter
n. 外径指示规\\n[机] 外径仪
🗣️ 情景例句
A little going-away present.
一个小小的临别礼物。
If he doesn't accompany him, I will.
如果他不，我将陪伴他。
How did you decide that product was safe?
你怎样决定产品是安全的呢？