S.i.
[医] 可溶胰岛素, 国际单位制
🗣️ 情景例句
That's right. Grandpa hangs it there for good luck.
是的。爷爷把它放在那儿 以求好运。
Hold on,please.
请你等一下。
Modern industry is based on the conception of the maximum production at lowest cost,
以最低成本获取最多产品，