He felt very flat after his friends had gone home.

他的朋友们回家后，他感到兴味索然。

《牛津词典》

There are no mountains, so the land is very flat;

由于这里没有山脉，地面非常平坦。

youdao

Much of the countryside in east Anglia is very flat.

东英吉利的许多乡村都地势平坦。

youdao

Much of the countryside in east Anglia is very flat.

东英吉利的许多乡村都地势平坦。

youdao