S.i.
[医] 可溶胰岛素, 国际单位制
🗣️ 情景例句
I'm sure he misses Grandma on a day like this.
我想在这样的日子祖父一定会思念祖母。
If I went with you,I'd have to be back by six o'clock
如果我与你一起去了，我将不得不在6点钟回来。
I know. I can help him with most of his subjects.
我知道。我可以帮助他学习绝大多数科目。