Today's focus:

地铁(dì tiě) subway

坐(zuò) to use

我想坐地铁.(wǒ xiǎng zuò dì tiě) I want to use the subway.

......号线(......hào xiàn) Line...

错(cuò) wrong

我坐错方向了.(wǒ zuò cuò fāng xiàng le) I sit wrong direction.