Liptodetrinite
碎屑壳质体
🗣️ 情景例句
This has been a great learning experience for us, Marilyn.
这对我们是一次很好的学习经验， Marilyn。
It was after dark when we got back,and we were all tired.
我们回来时天已经黑了，并且我们都很疲倦。
You can't buy them in the shop before eight o'clock.
上午八点之前你在商店里是买不到东西的。