总英语 - 初级 - 第 12 单元 - 第 1 课

any of the large land masses of the earth surrounded by sea such as Europe, Africa or Asia

大陆

an obstacle that separates people or hinders any progress or communication

障碍

a passage dug through or under a mountain or a structure, typically for cars, trains, people, etc.

隧道

to join two or more things together

连接

a piece of land surrounded by water

岛

to be connected or linked together

连接

to establish a physical connection or attachment between two or more things

链接

the main part of a continent or country that is connected to a larger landmass, excluding surrounding islands or territories

大陆