Sags
v. 向下凹或中间下陷( sag的第三人称单数 ); 松弛或不整齐地悬着
🗣️ 情景例句
It's a great party, isn't it?
这个派对很不错，是吗？
It's certainly a big improvement over yestterday.
肯定比昨天大有好转。
It is called a clavichord.
被称作古钢琴，