tread mill 中文意思是什麼
tread mill
解釋
活動平板車,踏旋器-
And this would help him to understand why constructing artificial flowers or performing on a tread - mill is work, while rolling ten - pins or climbing mont blanc is only amusement
這個道理使他明白了為什麼做假花和蹬車輪就算是工作,而玩十柱戲和爬勃朗峰就算是娛樂。
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