Invaginations
(invagination 的复数) n. 入鞘, 凹入, 反折, 反折处, 凹入部分, 肠套叠\\n[医] 折入, 凹入, 内陷, 套迭
🗣️ 情景例句
I visited Japan on an observation tour of its industries.
我到日本观摩它的工业。
Please give me a hand.
请帮我个忙。
They are only too delighted to accept the invitation.
他们非常乐意接受邀请。