Spirule
螺旋线尺, 根轨迹仪
🗣️ 情景例句
Today I'm so happy; I found a new boyfriend.
今天我很高兴，我又找了个新男朋友。
This problem is hard to solve.
要解决这个问题不简单。
They must keep their hands behind their backs.
他们得一直将手放在背后。