Facultatively
特许地; 能力地; 偶发地; 兼性地
🗣️ 情景例句
Haven't I seen you before?
我以前没见过你吗？
What is the hottest area in this country?
这个国家最热的区域是哪里？
Postcards always spoil my holidays.
明信片总搅得我假日不得安宁。