The dermis is composed of the connective tissue that supports the epidermis.真皮是由支撑表皮的结蒂组织构成的.Althouth very thin, the epidermis serves to protect the underlying dermis.表皮虽然非常薄, 却可用来保护下层的真皮.Objective : To study the effect ...
星天牛在连街市中常常能看见.Anoplophora malasiaca can often be looked in the urban area.偶们要到街市里去理发.We'll and get our hair cut in the town.后来他们迁居街市,孟子便学起商贩做买卖的样子来.So they moved to live next to a marketplace....
With this type of camera, the shutter speed is fixed.对这类相机而言，快门的速度是固定的。The camera has a shutter speed of one - sixtieth of a second.这架照像机的快门速度达六十分之一秒.The slam of the shutter awoke me.百叶窗砰的一声把我惊醒了....