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. 機會;適當的時機良機;有利的環境,條件;
?? op=ob靠近 + portun=harbor港口+ ity 表名詞 → 向港口靠近 →機會
"He took the opportunity to deliver us another snub."
他借機再次冷落我們.
近義:instance, occasion, case, episode, event, happening
反義:hindrance, hitch, knot, misadventure, mishap, obstacle
adv. 離開,遠離;在遠處;消失;
adj. 不在的;遙遠的;客場比賽;
?? a(on)+broad→在遠方;離去;不在
"In the hotel, the old men were drinking away as usual."
在旅館里, 這些老人和往常一樣喝個不停.
近義:abroad, out, outdoors, outside, without
adj. 過去的;用完了;死去的;無望的,無可挽救的;
v. go的過去分詞;
"He's gone AWOL from his base."
他從基地開了小差。
近義:absent, missing, departed