小组: group 短语和例子骨干小组 a ginger group (党内的); 科研小组 scientific research group; 小组评价 group appraisal; 小组前二名 top two group finishers
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
