Valvulae vasorum
[医] 淋巴管瓣
🧩 词语组成解析
[医] 瓣, 瓣膜
🗣️ 情景例句
And besides,
更何况，
Knowledge advances by steps and not by leaps.
知识只能循序渐进，不能跃进。
Last week I went to the theatre.
上星期我去看戏。