The hammock's suspension system is very sturdy and can support a lot of weight.

suspension 是名词，来自动词 suspend（悬挂、吊起），suspend 由前缀 sus-（表示“在...下面”）和 pend（悬挂）组成。suspension 指"悬挂系统"或"悬吊装置"，这里特指吊床的支撑结构。