这书桌表面粗糙。
Even in a very harsh environment, still can protect the steel surface.
即使在很苛刻的环境中，仍能长效保护钢铁表面。
The surface of the table is very harsh.
那张桌子的表面非常粗糙。
The weather also has become much more harsh upon the surface of the earth.
地球表面的气候也变得更加恶劣。
The weather also has become much more harsh upon the surface of the earth.
地球表面的气候也变得更加恶劣。
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