pedal ['pɛdl] 词频3 词根: ped

n. 踏板;脚蹬子;垂足线; vt.& vi. 踩自行车的踏板;骑自行车; adj. 脚的;踏板的;

💡 ped脚+al形容词后缀 → 用脚踏上的 → 踏板，踏脚

"The protests have forced the government to back-pedal on the new tax."

近义：treadle, foot

flood [flʌd] 词频1 词根: 流动

n. 洪水;泛滥;溢流;探照灯; vi. 涌出;为水淹没; vt. 淹没;

💡 flo(flow)+od(名词后缀)→泛滥；洪水

"They built dykes and dam to hold back the rising flood waters."

近义：inundate, overflow, submerge, swamp, deluge, drown 反义：purge, rinse, sap, scoop, swill, bleed

turn [tɝn] 词频1 词根: 扭转

vt.& vi. 使转动;旋转;使改变方向;使不适; vt. 使变酸;使变换;使变为; n. 翻转;（路线或方向的）改变;机会;

"The government did an about-turn over nuclear energy."

近义：loop, slew, swerve, veer, wind, bend 反义：reerect, right, straighten, unfold, untwist

pump [pʌmp] 词频2

n. 抽水机;打气筒;泵;轻软舞鞋; v. 用泵输送 ;涌出;急速摇晃;盘问;

💡 泵铺(谐音):泵铺村生产 水泵 网友：yqy补充： 撞（bump）了一下水，水从一边（b）到了另一边（p）（注意：好像b翻了个跟头），原来是pump过来的

"This water is forced into the boiler by the feed pump."

近义：imbue, implant, inculcate, infuse, inspire, instigate

engine ['endʒin] 词频1 词根: en

n. 发动机，引擎;工具;火车头;机车; vt. 给…安装发动机;

💡 谐音“引擎” engineer工程师-engine工程

"We had to completely disassemble the engine to find the problem."

近义：motorize, machine, motor, loco, locomotive