Facultatively
特许地; 能力地; 偶发地; 兼性地
🗣️ 情景例句
OK. I'll do as you say.
好的，照办。
You are welcome.
不客气。
'This is the prettiest carpet I have ever seen,' she said.
“这是我见过的最漂亮的地毯，”她说。