The bed of old people adds thick mattress with hard mattess or hard bedplate had better.老年人的床以硬床垫或硬床板加厚褥子为好.He pats bedplate, bite sound to stop namely, but differ meeting is bitten again rise.他一拍床板, 咬声即停, 但不一会又咬起来....

n.（安置机器的）底板，座板...

bedplate的音标：bedplate的英式发音音标为：['bedpleɪt]bedplate的美式发音音标为：['bedpleɪt]...