start by

• 先做某事

start by的用法和样例：

例句

1. The new conductor start by weed out the weaker player in the orchestra.
   管弦乐队新来的指挥一上任就先把较差的演奏人员清除出去了。
2. You must start by unlearning all the bad habits your previous piano teacher taught you!
   你得先改掉以前钢琴老师教给你的一切坏习惯！
3. The machine will start by itself in a few seconds.
   机器在几秒钟後会自动开启。
4. I want to start by the11:30 from the northern station.
   我想从北站坐11点30分的车走。

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