Primaries
n. 基元；主翼羽, 比较原色（primary复数）
🗣️ 情景例句
I'd like to help you, but...
我很想帮助你，但是…
I don't seem to have any luck today.
我今天运气不好。
In the letter he was asked to call at the station.
要他到警察局去一趟。