Do one thing at a time, and do well. 一次只做一件事，做到最好！！（聽發音）
at a time 每次,一次
I can only carry two at a time .我一次只能攜帶兩個
do well 做的好
I can do better than that anytime . 我一定會做得比這還好
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The only thing we have to fear is fear itself（我們唯一要恐懼的就是恐懼本身）
在1933年至1945年出任美 …