In the natural course of events cows would wish to be milked more than twice a day.按照事情发展的自然规律，母牛每天应该挤奶两次以上。The gadget is used to artificially inseminate cows.这个器具被用来为母牛实施人工授精。The milkman selected the spotted cows, from ...
Have you got your crayons? Have you got your sketch - book?你得到你的粉笔的 吗 ?你有草图书 吗 ?Children enjoy colouring, eg with crayons.儿童都喜欢涂颜色(如用蜡笔).The little girl was coloring pictures with crayons.这个小女孩正在用蜡笔在图画上涂颜色.I need some ch...