entries → 理所當然
TSUMUGU · TOCFL 5 (est.) · 詞
理所當然 word · TOCFL 5 (est.)
理所當然 ＝ 理 ＋ 所 ＋ 當 ＋ 然
ㄌㄧˇ ㄙㄨㄛˇ ㄉㄤ ㄖㄢˊ · lǐsuǒdāngrán
phrase — as a matter of course; naturally, of course (it should be so)

字源 FORM — what the parts do

理reason, principle (道理)lǐ
所that which (所以)suǒ
當ought to (應當)dāng
然so, thus (當然)rán
理所當然，道理的理，所以的所，應當的當，當然的然。
關 · Related
天經地義tiānjīngdìyìutterly proper — the stronger idiom當然dāngrán"of course" — the same 當然