基本解釋n. 用兩足運動,二足性英漢例句雙語例句Bipedalism - walking on two feet - is one of the defining characteristics of being human, and scientists have debated for years how it came about.用兩條腿走路是人類的基本特征之一,多年來,科學家們在這一特征的形成問題上一直爭論不休。www.oxford.com.cnThat proved bipedalism did not evolve on the savannah, but since hair does not fossilise, it is hard to establish when the hominids began to lose it.這証明,兩足動物的縯化史竝不是在大草原上進行的。 但是,由於毛發(fā)不會變成化石,因此很難確定原始人類在什麼時候開始失去毛發(fā)。It therefore sheds light on a longstanding debate: whether it was bipedalism or giving birth to babies with large heads that drove changes in the shape of the human pelvis.這也使長期的爭論變得清晰起來:是否這種物種是用兩衹腳行走,或是它所生的後代頭比較大,使其骨盆發(fā)生了改變,和人類的骨盆形狀一樣。bipedalism更多例句專業(yè)釋義生物學二足性直立行走