If not
要不, 不然; 若非
🧩 词语组成解析
if
[if]
conj. 如果，倘若;即使;〈口〉是否;假设;
n. 条件，设想;
not
[nɑt]
adv. 不;[用以表示否定、否认、拒绝、禁止等]不是;几乎不;未必，没有[用于否定后面的词或短语];
🗣️ 情景例句
What's the climate like in your country?
你们家乡的气候如何？
He preaches best who lives best.
言教不如身教。
Historians have long been puzzled by dots, lines and symbols which have been engraved on walls, bones, and the ivory tusks of mammoths.
长期以来，历史学家一直对雕刻在墙壁上、骨头上、古代长毛象的象牙上的点、线和形形色色的符号感到困惑不解。