词典释义：
双语例句
-
Feig and colleagues raised mice, some in plain cases with wood chips and others in "enriched" cages with boxes, a running wheel, toys, and constant rearrangements of nesting material.
菲格及其同事分别在装有木屑的普通盒子和放有盒子、飞轮和玩具等物品的“高级”笼子中培育两组幼鼠。在后一个环境中，研究人员还不停地变换物品的摆放。