If ever
很少，难得; 如果有过的话
🧩 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;
ever
['evə]
adv. 永远;曾经，这以前;究竟，到底;可能;
🗣️ 情景例句
I continued to teach piano lessons at home.
我继续在家教钢琴。
It's raining cats and dogs.
下着倾盆大雨。
But some time later it began to rain.
但过了一阵子。天下起雨来，