4. propel
助记:pro(向前)+ pel(推,驱使)→向前推→推进
释义:v. 推进,驱使
举例:
Thetiny rocket is attached to the spacecraft and is designed to propel it towardMars.
微型火箭附在宇宙飞船上,用来推进飞船飞向火星。
5. repel
助记:re(反)+ pel(推,驱使)→向反方向推→击退
释义:v. 击退,抵制,使厌恶
举例:
Theyhave fifty thousand troops along the border ready to repel any attack.
他们沿边界有5万军队,随时准备击退任何进攻。
词根:flu = flow 流动
1. fluctuate
助记:flu(流)+ ctuate→波动,起伏
释义:v. 变动,(使)波动,涨落,(使)起伏
举例:
Bodytemperature can fluctuate if you are ill.
人患病后体温可能会上下波动。
2. influent
助记:in(向内)+ flu(流)+ ent→向内流→流入的
释义:a. 流入的;n. 支流
举例:
Meanwhile,the sludge volume index would also increase with the increasing of influentflow distribution coefficient.
同时污泥体积指数也会随着进水流量分配系数的升高而增大。
3. influential
助记:influent(流入的)+ ial(关于…的,有…的)→有流入内心的东西→有影响的
释义:a. 有影响的,有势力的
举例:
She isone of the most influential figures in local politics.
她是本地政坛举足轻重的人物。