Frogs use lily pads to hide from predators like fish and certain water snakes.

青蛙用睡莲叶来躲避某些鱼类和水蛇等捕食者。

The pads are strong, hard and thick.

脚垫结实，坚硬而厚实。

Shoulder pads are safe for the players.

有垫肩对运动员比较安全些。

I don't have small pads, and I only have a large one.

我没有小号的垫，我只有大号的。

Pads which bottom out, should not have spring pockets.

最底的垫板，不需要弹簧保护装置。

Items, which were donated for the study, included car seats, changing table pads, sleep positioners and infant bath mats.

为这项研究捐赠的物品包括汽车座椅、换尿布台垫、睡眠固定垫和婴儿浴垫。