Monosymmetrical
a. 单轴对称的, 两侧对称的
🗣️ 情景例句
What time will the plane land?
飞机在什么时间降落？
I have no idea what they're going to say, so I'll have to play it by ear.
我一点不知道他们将会说些什么，所以我只好见机行事。
I'm not sure. I think he may have to help his Dad in the garden.
我不清楚。我想可能他得帮助他爸爸在花园里干活。