Chromatographical
a. chromatography的變形
??? 情景例句
Sorry, I've already got plans.
對不起， 我有事。
He insisted that we all be in his office at one o'clock.
他要求大家一點鐘到他的辦公室。[大學英語四級]
The workmen told him to do as he pleased and the policeman telephoned for help.
工人說，悉聽尊便。警察去打電話叫人。