The course is designed to help students with colour and composition.设置这门课程是为了指导学生如何运用色彩和构图。the chemical composition of the soil土壤的化学成分He played a piece of music of his own composition.他演奏了一首自己创作的曲子....
Fish and seaweed rose, caught motionless in the surging water.鱼和海藻浮起来，在汹涌的水流中动弹不得。Seaweed baths can help to detoxify the body.海藻浴有助于身体解毒。The underside of the rock was covered with seaweed.岩石的下面布满了海草....