一只年轻的海豹在南非干斯拜附近的巨藻丛中觅食.A young fur seal forages amid bull kelp near Gansbaai, South Africa.巨藻的微小部分显示出这种海洋植物非同寻常的特征.A tiny section of kelp exemplifies the extraordinary features of this sea plant....
The city's streets are filthy and choked with exhaust fumes.那座城市的街道肮脏不堪，弥漫着令人窒息的废气。When your exhaust falls off, you have to replace it.如果你的排气管脱落，应将其更换。The problem was that the exhaust gases contain many toxins.问题在于废...
The inner layer of the cortex differentiates into the endodermis.皮层的内层分化为内皮层.Phellem layer can do cork, endodermis can do dye.木栓层可做软木塞, 内皮可做染料.The primary root is tetrarch , and endodermis with casparian strip is obvious...
To be ignorant of one's ignorance is of the ignorant.每天进步一点点----不知道自己的无知,是无知者的通病.They appear to be ignorant of what is going on here.他们对这里发生的事似乎一点也不知道.She appears to be ignorant of this fact.她似乎不知道这件事实....