Ctn
abbr. [数]余切（cotangent）
🗣️ 情景例句
getting the album published?
才能让摄影集出版吗？
When is the most convenient time for you?
你在什么时间最方便呢？
They will be able, as it were, to see and hear us in action.
他们能够身临其境般地观看我们做事，倾听我们讲话。