本岛

nà lǐ shì tái wān běn dǎo

那里是台湾本岛。

There is the main island of Taiwan.

tái wān shěng bāo kuò tái wān běn dǎo hé zhōu wéi xiǎo dǎo

台湾省包括台湾本岛和周围小岛。

Taiwan province consists of the main island of Taiwan and a number of islets around it.