清洁牙缝
先理解核心含义，再看它在真实句子里的用法。
清洁牙缝
to remove food or plaque from between the teeth, typically using dental floss
You should floss to clean between your teeth at least once a day.
你应该每天至少用牙线清洁一次牙缝。
清洁牙缝
to remove food or plaque from between the teeth, typically using dental floss
Use clean between teeth naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
Dictionary facts from AI_SUPPLEMENT.