Sandfall
滑落面
🗣️ 情景例句
about your math teacher or your math homework.
你的数学老师或你的数学作业。
How much will you sell me this for?
把这个东西卖给我要多少钱？
After he had put it on the floor, he promptly went to sleep again.
他把床垫往地板上一放，很快又睡着了。