Valves
n. 閥門；真空管；瓣膜（valve的復數）
??? 情景例句
the girl he was in love with in college married someone else.
他大學時代所愛的女孩跟別人結婚了。
Courtesy costs nothing.
謙虛恭敬，不用分文。
Fish love swimming round the rocks and through holes in them.
魚喜歡繞著巖石和穿石洞游水。