-s
suf. 附在规则名词之后构成复数; 附在某些无单数形式名词之后构成复数glasses, socks, trousers; 附在某些名词之后构成单数billiards, checkers, works; 用以构成表示反复或一贯之动作或状态的副词always, Sundays; 附在原形动词之后, 构成第三人称单数一般现在时态的陈述语气
🗣️ 情景例句
We have two and a half hours.
还有两个半小时。
I dropped the letter in the mailbox on the corner.
我把信放到角落上的邮箱里。
Where does the teacher stand?
老师站在哪里？