大腿
先理解核心含义，再看它在真实句子里的用法。
大腿
the part of the leg between the hip and the knee
He injured his upper leg during the game.
他在比赛中伤到了大腿。
大腿
the part of the leg between the hip and the knee
Use upper leg 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.