The convector pits are covered with convrete grids that are prefabricated for building pigsties.
供热器并被通常用在猪圈上的混凝土格栅覆盖。
The convector pits are covered with convrete grids that are prefabricated for building pigsties.
供热器并被通常用在猪圈上的混凝土格栅覆盖。
Never is a steed pigsty-born;nor an evergreen pine potbound.
猪圈岂生千里马,花盆难养万年松。
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