rational adj.

VERBS be, seem It all seemed quite rational to me.

ADV. highly, very | entirely, fully, perfectly, quite At the time she was perfectly rational. | purely, strictly | essentially Humans are essentially rational beings. | apparently | economically With children working from the age of ten, large families were economically rational.

PREP. about Try to be rational about it.

You can also check Google Dictionary: rational (English, 中文解释 )

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