Lemniscate
n. [数]双纽线
🗣️ 情景例句
We'll tell you the big surprise.
我来告诉你们这个大惊喜。
I was in the hospital for several weeks.
我在医院里住了几个星期了。
The pilot managed to circle the balloon for some time.
飞行员设法绕着气球飞了一阵。