What is now proved was only once imagined.
— Unknown
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?? 名句詞匯解析
從本句名言中提取的重要詞匯，幫助你深度理解這句話
adv. 一次，一趟;一倍;曾經(jīng);一旦;
conj. 一旦…就…;一經(jīng);
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(xì)菌一進(jìn)入血液里，就附著在紅細(xì)胞表面上。
近義：heretofore, occasionally, onetime, previously, sometimes, thereinbefore
prove的過去式和過去分詞
近義：proven, tested, tried, confirmed, demonstrated
反義：unascertained, unchecked, undemonstrated, unfounded, unproven, unsettled