本 Total English - 初歩 - ユニット 12 - レッスン 1

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

大陸

an obstacle that separates people or hinders any progress or communication

障壁, 障害

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

トンネル

to join two or more things together

接続する, 結ぶ

a piece of land surrounded by water

島

to be connected or linked together

結ぶ, 参加する

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

リンクする, 接続する

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

本土, 本陸