Perpendiculars
垂直的, 成直角的( perpendicular的名词复数 )；直立的
🗣️ 情景例句
They're real watches. They tell you the time, don't they?
当然是"真的表"罗。会走也会报时，不是吗？
To learn how to count
学习记账
Is there anything else that you want me to get?
您还要我买别的东西吗？