adv. 一次,一趟;一倍;曾经;一旦;
conj. 一旦…就…;一经;
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."
细菌一进入血液里,就附着在红细胞表面上。
近义:heretofore, occasionally, onetime, previously, sometimes, thereinbefore
adj. 最小的;最少的( little的最高级);最不重要的,地位最低的;
adv. 最少,最小;
n. 最小;最少量;
"We need at least 24 hours' notice of cancellation."
如欲取消,请至少提前24小时告知。
近义:lowest, lowliest, measly, merest, minimal, minimum
反义:maximal, meridian, top, upmost, uppermost, greatest