1. When he woke up, he was still on the mattress.
    他醒来时，仍然躺在床垫上。

2. The mattress is made of spring wires.
    这个床垫是用弹簧做的。

3. Glancing at the bits of wood and metal that lay around him, the man sadly picked up the mattress and carried it into his house.
    年轻人看了一眼周围的碎木片和碎金属片，伤心地捡起了床垫，把它拿进了屋。

4. In 1928 some porpoises were photographed working like beavers to push ashore a waterlogged mattress.
    1928年，有人拍摄到了海豚像海狸一样把浸透水的床垫推上岸的情景。

5. For the first time in his life, he became the proud owner of a bed which had springs and a mattress.
    他平生第一次自豪地拥有了一张既有弹簧又带床垫的床。