每天一组单词(8-27)第六天
第六天
\[保持\begin{cases}
\color{purple}{sustain}\begin{cases}
①使持续 &\text{sustain economy/interest/relationship}\\
②遭受,经受 &\text{sustain injuries/financial/losses}\\
③维持\cdots 生命 &\text{sustain the argument}\\
④证明,证实 &\text{sustain the argument}\\
⑤使强壮,保持信心,支撑,承受重量 &\text{sustain the weight}\\
\rightarrow \begin{cases}
-tain &达到一定水平\begin{cases}
\text{attain}
\end{cases}\\
sus- &和"悬"有关,延续一个状态
\end{cases}
\end{cases}\\
\color{purple}{maintain}\begin{cases}
保持,维修,供养,坚信\\
\text{maintain + sth.}\\
\text{maintain a family}\\
\text{maintain a machine}\\
\text{maintain a view that}\cdots
\end{cases}\\
\color{purple}{retain}\begin{cases}
保持原样\\
* 信息,记忆,内存保留\\
* +\text{ sb.}=挽留人才\\
\text{retain information}\\
\text{retain facts}\\
\text{retain staff}
\end{cases}\\
\\
形近\begin{cases}
attain\begin{cases}
实现,达到\\
\\
\begin{cases}
attain&经过长时间努力\\
\\
accomplish&才气,技能,成功=\text{succeed}\\
\\
achieve&努力工作学习(大的成就)
\end{cases}
\end{cases}\\
detain 拘禁,耽搁
\end{cases}
\end{cases}\]