Bitunicate
双囊壁的, 双囊壁组群的
🗣️ 情景例句
Please sit down, Mr. Mark.
请坐吧，马克先生。
I meet the boy whose aunt is a stewardess.
我遇到那个男孩的姑妈是空中小姐。
Yes. We've just heard a warning on the radio that a hurricane is likely to come.
是的，我们刚从广播里听到一则气象警报，说是一场飓风可能要到来。