Phthalocyanines
[化] 酞菁染料
🗣️ 情景例句
I took a month off for a holiday.
我休了一个月假。
Let's call it a day
进行某事
and at the most critical juncture we took turns in watching that point.
在最紧急的时刻，我们轮流监视那段河流的险情。