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
n. 習慣,慣例;海關,關稅;經常光顧;[總稱](經常性的)顧客;
adj. (衣服等)定做的,定制的;
"This custom has been carried down from the 18 th century."
這一習俗從18世紀一直傳到現在.
近義:practice, prevalence, style, stylishness, tradition, usage
反義:naturalness, sincerity, spontaneousness, unaffectedness, made, precast