| 词汇 | expedient |
| 词根词缀 | 词源： late 14c., "advantageous, fit, proper" (adj.), from L. expedientem (nom. expediens) "beneficial," prp. of expedire "make fit or ready, prepare" (see expedite). The noun meaning "a device adopted in an exigency, a resource" is from 1650s. 词根记忆： a. 方便的;权宜的(ex出+ped+ient→能把脚跨出去→方便的)[ped=foot,表示"脚"] 词根词缀： expedient expedient a 方便的,权宜的(ex出+ped+ient=能把脚跨出去=方便的) ped=foot, 表示”脚” pedal a 脚的,足的(ped+al) pedestrian a 步行的n. 步行者(ped+estrian…的人=用脚走路的人) biped a 两足的n. 两足动物(bi二+ped=两只脚) quadruped n/a 四足动物(的) (quadru四+ped) centipede n 蜈蚣(centi一百+pede=一百只脚的动物=蜈蚣) expedite v 加快,促进(ex出+ped+ite=把脚跨出去=加快) expeditious a 迅速的( expedite+ious) expedition n 远征,探险(ex出+ped+ition=走出[去]冒险) impede v 妨碍,阻碍(im进入+pede=把脚放进去=妨碍) impediment n 阻碍,阻碍物(impede妨碍+i+ment) expedient a 方便的,权宜的(ex出+ped+ient=能把脚跨出去=方便的) podiatrist n 足病医生(pod[=ped脚]+iatrist专家) |
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