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
If I've ever been sure of anything, I'm sure of this; your team is going to lose the same game on Saturday.
这一次我十分肯定：你们队星期六的比赛会输。
This is Mary Speaking.
我是玛丽。
Old women in black shawls peered at us from doorways.
披黑纱巾的老妇人站在门口偷偷地瞅着我们。