Unilinear
a. 直線發(fā)展的, 分階段發(fā)展的
??? 情景例句
You really must have your wits about your when dealing with such people.
跟這類(lèi)人打交道，你必須格外警覺(jué)。
A man has his hour, and a dog has his day.
人有稱(chēng)心時(shí)，狗有得意日。
He put a glass dish with sugar water and honey to the west of the hive. A marked bee fed itself from the dish and returned to the hive.
他在蜂箱的西面放一個(gè)裝有糖水和蜜蜂的玻璃碟子。