Categories
n. 分类；类别（category的复数）
🗣️ 情景例句
and check on your mother and the baby.
问问你母亲和孩子的情况 。
Someone is using the phone.
有人在用电话。
So he took off the second shoe and put it under his bed very quietly.
他脱下第二只鞋子，轻轻地放在床下边。