Papillary muscle
乳頭肌
?? 詞語組成解析
a. 乳頭的, 乳突的\\n[醫(yī)] 乳頭的, 乳頭狀的
??? 情景例句
Excuse me, ma'am.
對不起 夫人
A smooth sea never made a skillful mariner.
平靜的海洋練不出熟練的水手。
While we were having breakfast, our little boy, Tommy, found two small coins on the floor.
正當(dāng)我們吃早飯時(shí)，我們的小男孩湯米在地上找到兩枚小硬幣。