Valid prefix
[计] 有效前缀
🧩 词语组成解析
prefix
['pri:fiks]
n. <语>前缀;人名前的称谓;前置代号（置于前面的单词或字母、数字）;
🗣️ 情景例句
I don't know how she does it.
我不知道她怎么办到的。
Please contact me when you come home.
你回到家时请跟我联系。
The explanation was simple but very unusual.
解释很简单，却异乎寻常。