all the countries in the world; 世界各国
all the guests; every guest; 各位来宾
various raw materials; 各种原材料
different kinds of products 各类产品
Each has both advantages and disadvantages. 各有优点,也各有缺点。
There is a door on either side. 两侧各有一门。
牛津高阶第八版
美国韦氏词典
Dictionary.com
Free Dictionary
维基百科 (自由的百科全书)