Hypocycloidal
内圆滚线
🗣️ 情景例句
Davis Aerobics Center for Good Health.
Davis有氧运动健身中心。
Judge not of men and things at first sight.
审人论事宜谨慎，一见之下莫断定。
Can we substitute in these things?
这几项可以用替代品吗？