Alligators are usually active at night.

短吻鳄通常在夜间活动。

Alligators live in swamps and rivers.

短吻鳄生活在沼泽和河流中。

He knows a lot about the habits of alligators.

他对短吻鳄的习性非常了解。

Alligators love to eat human flesh.

短吻鳄喜欢吃人.

They're eating deer, they're eating alligators.

它们吃鹿，吃短吻鳄。

To find out how alligators breathe, scientists pumped fluids through the lungs of dead American alligators and measured the direction of the resulting airflow.

科学家们为了找出短吻鳄是如何呼吸的，将液体压进已死亡的美洲短吻鳄的肺中并观察气流最后出来的方向。

Alligators are found only in two countries: the United States and China.

短吻鳄只存在于两个国家：美国和中国。

We kept a vigilant eye out for alligators and for venomous snakes.

我们警惕地睁大眼睛,以防短吻鳄和毒蛇的出现.

There are numerous signs warning people not to feed the alligators in the area.

有很多标识警告人们不要在这个区域喂这些短吻鳄。

Hundreds of them flow through this southern state, and many are full of alligators!

上百条的溪流贯穿于南部的这个州, 而且许多(支流)里有很多短吻鳄.