想當然

to take sth as given / to make assumptions

to think / to believe / to suppose / to wish / to want / to miss (feel wistful about the absence of sb or sth)

to think (about) / to think of; to devise / to think (that); to believe (that) / to desire; to want (to) / to miss (feel wistful about the absence of)

correct / right / so / thus / like this / -ly

to be / to act as / manage / withstand / when / during / ought / should / match equally / equal / same / obstruct / just at (a time or place) / on the spot / right / just at

at or in the very same... / suitable / adequate / fitting / proper / to replace / to regard as / to think / to pawn / (coll.) to fail (a student)

only natural / as it should be / certainly / of course / without doubt

variant of 想當然爾|想当然尔[xiang3 dang1 ran2 er3]

to take sth as given / to assume / as one would expect / naturally