請(qǐng)幫忙翻譯幾句簡單英語（漢譯英）不要翻譯器謝謝

Turtle is a very archaic reptile
There Is a very hard shell on its back
They climb very slow but they have a very long life
They usually live in the sea and sometimes move to the shore

Turtles are ancient reptiles.
It has a very hard shell.
They crawl very slowly and have very long life.
They generally live in the sea, but sometimes they come ashore for some activities as well.

The sea turtle is a kind of areptile with a long history.
It has a hard shell on its back.
Its pace is very slow, but it has a long life.
It usually lives in the sea but still come to land sometimes.

P.S.: 前面所給的中文中前兩句用“它”為單數(shù)，后兩句為復(fù)數(shù)的“它們”。
未免混淆，我把所有的復(fù)數(shù)都改成單數(shù)了，用單數(shù)的“它”指代海龜這一類。