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来源:雅诚德英语网
Unfortunately, as a standard mattress wears, the springs soften and so do not support your spine.
不幸的是,当一张标准床垫用旧后,其弹簧变软,因而不能支撑你的背脊。
Unfortunately, as a standard mattress wears, the springs soften and so do not support your spine.
不幸的是,当一张标准床垫用旧后,其弹簧变软,因而不能支撑你的背脊。