Palaeoptera
古翅类
🗣️ 情景例句
Many students are working at part time jobs.
许多学生兼职打工。
I've got a lot of things to do before I can leave.
在我能离开以前，我有很多事情做。
In another chest, which contained the belongings of a ship's officer, there was an unfinished letter which had been written on March 14th, 1943.
另一只海底沉箱中装的是船上一位军官的财物，其中有一封写于1943年3月14日的信，但没有写完。