Ulcera
[医] 溃疡
🗣️ 情景例句
Make sure you file this invoice straight away; I don't want it being misplaced.
记得现在就把发票给开了，我可不想弄错了。
Habit is a second nature.
习惯成自然。
This is the point I wish to emphasize.
这就是我要强调的论点。