TSUMUGU · TOCFL 5 (est.) · 詞
開口
ㄎㄞ ㄎㄡˇ · kāikǒu
verb — to open one's mouth, to start speaking; noun — an opening, a gap
故事 STORY — a scene to remember it by
嘴（口）一張開（開），話才出得來。
The mouth (口) opens (開), and only then do words come out.
記憶法