Representative sampling
典型抽樣
?? 詞語組成解析
representative
['r?pr?'z?nt?t?v]
n. 代表;繼任者;議員;類似物;
adj. 典型的;有代表性的;代議制的;相當(dāng)[類似]（另一種屬）的;
represent代表+ative形容詞后綴 →代表性的
sampling
['sɑ:mpli?, 's?-]
n. 抽樣;取樣;（樂曲的）節(jié)錄;選錄;
??? 情景例句
I'm going to the library to do some research.
我要去圖書館搞些調(diào)研。
What's your nationality?Are you American?
你的國籍是什么?你是美國人嗎？
they can locate and steer clear of obstacles -- or locate flying insects on which they feed.
并能通過回聲來確定并躲開障礙物，或找到它們賴以為生的昆蟲。