S.i.
[医] 可溶胰岛素, 国际单位制
🗣️ 情景例句
What time is it, anyway?
几点了，顺便问一下。
Please sit down and have a glass of juice.
请坐下来喝一杯果汁。
Suddenly they came to a waterfall which dropped into an underground lake at the bottom of the cave.
突然，他们来到一道瀑布前，那瀑布奔泻而下，注入洞底一处地下湖里。