Ostracoda
介形亚纲
🗣️ 情景例句
You must be very tired after the journey.
旅行之后，您一定累了吧！
I can't tell you how sorry I am.
我不知道我该怎样道歉。
That's a big box. Is it heavy? Please let me help you.
这是个大盒子。重吗？让我来帮你。