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
vi. 生存;居住;生活,過活;在生活中得到享受;
vt. 經(jīng)歷;度過;
"We cannot live without water."
沒有水我們不能生存。
近義:last, reside, be, sojourn, subsist, dwell
反義:perish, vanish, part, croak, decease, depart