barren, ['brən] adj 不育的,贫瘠的(缺少有益的植被),不结果实的=sterile=bare=effete=impotent=infecund 【例】The desert is barren land 沙漠是贫瘠的土地。 【记】1)bar=bare光光的-一无所有的-

发表于:2018-12-04 / 阅读(89) / 评论(0) 分类 不择手段背单词

It is now thought that the larvae of certain organisms may drift through the water until, 现在认为,某些生物的幼体可能在水里漂动, by some unknown chemical means, they detect that they have arrived at a food opportunity and fall o

发表于:2018-12-07 / 阅读(61) / 评论(0) 分类 万物简史