The subway train travelled under the ground.

地铁在地下行驶。

The trains are famous because they travel under the ground.

这些火车因在地下行驶而闻名。

The tree roots spread out under the ground.

树根在地面下蔓延开来。

The water there is naturally heated under the ground.

那是在地下天然加热的水。

The under storey is the dark, cool environment under the leaves but over the ground.

阴凉的楼下在树叶掩映之下，但在地面之上。

They built the library under the ground to keep it safe from bombing.

他们把图书馆建在地下，以保护它免受轰炸。

In the beginning, when a cicada is under the ground, it is called a baby cicada.

初期，蝉在地下时，被称为幼蝉。

There is a mole under the ground.

地下有一只鼹鼠。

Many people get water from under the ground.

许多人从地下取水.

The subway is the railway running under the ground .

地铁是在地下行驶的铁路。