Anaspida
缺甲鱼目
🗣️ 情景例句
He worked his way through college.
他半工半读念完大学。
Diseases come on horseback, but go away on foot.
病来如山倒，病去如抽丝。
Everything's very quiet.I'm sure there's no one at home.
毫无动静，肯定家里没有人。