Invaginate
v. 收进鞘中
✅ 同义词
🗣️ 情景例句
OK.
好。
It is better to be safe than sorry.
事后追悔不如事前稳妥。
When it did so, it sent sparks down to the ground and these immediately started a fire.
当它这样做时，把火花送到了地面，这些火花立刻引起了一场大火。