Lichen is a form in which green or bluegreen algae and a fungus live together symbiotically.地衣是一种绿藻或蓝藻与一种真菌共生的形式.Holdfast ( hapteron ) In algae , the cell or organ that attaches the plant to the substrate.固着器:是藻类植物具有的一种起...
Abortion has always been a divisive issue.人工流产一直是个引发争议的问题。A referendum would be divisive.公投将产生分歧。He believes that unemployment is socially divisive and is leading to the creation of an underclass.他认为失业会造成社会分化，道致贫困阶层的产生。A...