entries → 打開
TSUMUGU · TOCFL A2 (est.) · 詞
打開 word · TOCFL A2 (est.)
打開 ＝ 打 ＋ 開
ㄉㄚˇ ㄎㄞ · dǎkāi
verb — to open, to turn on, to unfold

字源 FORM — what the parts do

打to do, to act on (打掃)dǎ
開to open (開門)kāi
打開，打掃的打，開門的開。
關 · Related
開kāito open — the bare verb the 打 reinforces關上guānshàngto close — the opposite action