Faculative
a. 允许的, 任意的, 兼性的, 偶发的
🗣️ 情景例句
Mom is now on television
妈妈现在出现在电视上
Have another piece of cake, please.
请再吃一块蛋糕吧。
Right! Let's go and find them.
好的，咱们去找她们。