a method of smelting iron一种炼铁方法Darby was looking for a way to improve iron when he hit upon the idea of smelting it with coke instead of charcoal.达比一直在寻找改善铁质的方法，他猛然想到可以不用木炭熔炼，而改用焦炭。Fire provided a means of smelting ores....
他混进人群里就不见了.He mingled with [ in ] the crowd , and was lost to sight.她巧妙地混进了他的家庭.She cleverly insinuated herself into his family.画家把颜料混进油里来调色.A painter tempers his colours by mixing them with oil....