turtle

1. N-COUNT A turtle is the same as a . 同sea turtle[英国英语]

2. N-COUNT A turtle is any reptile that has a thick shell around its body, for example a tortoise or terrapin, and can pull its whole body into its shell. 龟[美国英语]

...a pet turtle. …一只宠物龟。

...the giant sea turtle. …那只巨大的海龟。