Annularity
n. 环状, 轮状
🗣️ 情景例句
The professor runs a restaurant on the side.
这个教授的副业是开饭馆。
But this doesn't mean that Mr. Li is a bookworm.
但这并不意味着李先生是个书呆子。
A run-down watch is still a watch and can be rewound.
手表停了依然是只手表，还可以重上好发条。