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It is quite easy, with all that choice, to change a light bulb.
有了这么多的选择，换一个灯泡是相当容易的。
youdao
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It is easy to change a light bulb, sure, but it is harder to change the bulb and its fixture.
换一个灯泡当然很容易，但是要更换灯泡和其固定装置就比较难了。
youdao
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Then, let's change a light topic?
让我们换换口胃来一个轻松的话题。
youdao