In this enlargement, barley, alfalfa, and sugar beets can be differentiated.在这张放大的照片上, 大麦, 苜蓿和甜菜都能被区分开.During rationing we had a sugar allocation.定量配给时期，糖是限量配给的。Maple sugar is made from the sap of maple trees.枫糖是由枫树的树液制成...
Teenage boys clamber down mine shafts 30 to 50 meters deep.孩子们沿着杆子爬到深30到50米的矿井里.He deliberately jerked the shafts to rock him a bit.他故意的上下颠动车把,摇这个老猴子几下.Shafts and hubs are usually fastened together by means of keys.轴和轮毂通...