Bijective
[计] 双射的
🗣️ 情景例句
and remember the meaning of Thanksgiving.
来追忆一下感恩节的意义。
Quick! Seize that child before she falls down.
快！趁还没掉下去，快抓住那孩子。
Oh,They will be very happy to see you again.
噢，又见到你们，他们会很高兴的。