The mends were almost invisible.补好的地方几乎看不出来.A plumber is a person who fits and mends the plumbing.管子工是安装和修理水管的人.The mends on your coat were almost invisible.你外套上的补钉简直看不出来....
默认选项通常是大多数用户都会选择的设置。The default is usually the setting that most users would probably choose.有4个基本的选项，简述如下。There are four basic alternatives; they are described briefly below.点击这个选项，使选定的文本向右对齐。Click this option to right-...
They may need some additional inputs and advice on how to improve the management of their farms.他们可能需要听取更多的意见和建议来改善农场的经营。In other cases, such as inventories, inputs and outputs are both continuous.在另一些情况下, 比如存货, 其投入和产出都是...