步行到镇上花费我大约二十分钟＝I 我 take a walk 以走路方式 to the downtown 走到镇上 that takes me about 大约需要 twenty minutes 二十分钟。
I take a walk to the downtown that takes me about twenty minutes.
简化一下：
I go to downtown by walk it costs me about twenty minutes.
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