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. (網球等)球拍;〈美俚〉勒索金錢,訛詐,敲詐,騙局;(四周有圍墻的)拍打回力網球,硬壁回力球;喧騷,吵鬧,嚷鬧,擾嚷,喧騷嘈雜的集會,狂歡;
v. 嚷鬧,吵鬧,縱情歡鬧;用球拍打;
?? 正規軍(ra)為了公雞(ck)和外星人(et) 吵鬧
"You need good hand - eye coordination to play racket sports."
網球之類的運動需要良好的手眼協調能力.
近義:rake, hubbub, hullabaloo, melee, muss, noise
反義:still, stillness, quietness