栅: 栅名词(栅栏) railings; paling; palisade; bars 短语和例子铁栅 iron railings; iron bars; metal rails; 木栅 paling; palisade; pale
人工: 1.(人为的) artificial2.(人力) manual work; work done by hand 短语和例子用机器代替人工 install machines to replace manual labor; 抽水机坏了, 只好用人工车水。 we had to move water by a chain pump because the electric pum
