Facultative
a. 授权的, 机能上的, 才能上的, 能力上的, 兼性的, 可选择的, 任意的\\n[化] 兼性的
✅ 同义词
🔴 反义词
🗣️ 情景例句
How do you keep in shape?
你怎么保持身材？
True love is giving,not taking.
真挚的爱是给，不是取。
Bluebird, the car he was driving, had been specially built for him.
他驾驶的“蓝鸟”牌汽车是专门为他制造的。