不怕髒
Plain - Wikipedia, the free encyclopedia某教授在田間授課:「科學研究要不怕髒。。。」然後他蹲下來,用手指戳了一下地上的牛糞,然後把手指放到嘴裡舔淨。 一同學忙說:「我不怕髒。。。」然後也用手指戳了一下地上的牛糞放到嘴裡舔淨。 教授:「另外還要善於觀察,比如說,我剛才是用中指戳糞,但舔的是食指。。。」 In geography, a plain is a flat area. Plains occur as lowlands and at the bottoms of valleys but also on plateaus or uplands at high elevations. In a valley, a plain is enclosed on two sides but in other cases a plain may be delineated by a complete or pa...
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