You'd better go at once, hadn't you?
你最好馬上走,不對嗎?
瘋狂英語精華演講卡 我該怎么開始(二)

?? 句中詞匯解析

從本句中提取的重要詞匯

once [w?ns] 詞頻1
adv. 一次,一趟;一倍;曾經;一旦; conj. 一旦…就…;一經; n. 一次,一回;
?? on=one一+ce次 → 一次
"Once in the bloodstream, the bacteria adhere to the surface of the red cells."
細菌一進入血液里,就附著在紅細胞表面上。
近義:heretofore, occasionally, onetime, previously, sometimes, thereinbefore
better ['b?t?] 詞頻1
adj. 較好的;更合適的;能力更強的;好轉的; adv. 更好地;更妥;更; v. 勝過;上進; n. 更好者;更有才智者;
"We're hoping for better weather tomorrow."
我們希望明天天氣轉好。
近義:improve, perfect, upgrade, meliorate, complete, enrich 反義:intensify, worsen, aggravate, deteriorate, exacerbate, lousy

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