El libro Total English - Elemental - Unidad 12 - Lección 1

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

continente

an obstacle that separates people or hinders any progress or communication

barrera

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

túnel

to join two or more things together

conectar

a piece of land surrounded by water

isla

to be connected or linked together

unir, joinerse

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

conectar

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

continente, territorio principal