?? 詞語組成解析
vein
[ven]
n. 靜脈;[地]礦脈，巖脈;[植]葉脈;氣質(zhì)，傾向;
v. 使有脈絡(luò);使有紋理;象脈絡(luò)般分布于;
??? 情景例句
Richard feels we need to find a small house. Richard
覺得我們需要一個(gè)小住宅。
When did you call?
你什么時(shí)候打電話來的？
It later became apparent that rabbits were developing a degree of resistance to this disease,
后來，明顯看出，兔子對(duì)這種疾病已產(chǎn)生了一定程度的免疫力，