We'd be watching every plane coming in from Melbourne.我们会密切注意从墨尔本飞来的每架飞机。His trip to Melbourne had yielded a lot of information.他的墨尔本之行让他大开眼界。Other important Australian cities include Melbourne, Brisbane and Adelide...
He was hardworking and energetic.他工作努力，精力充沛。Be thrifty and hardworking in whatever undertaking you are to start on.办任何事都要勤俭.It is generally known that the overseas Chinese are a hardworking lot.众所周知华侨是刻苦耐劳的....
A large proportion of the fluorine is vaporized during the concentration process.在浓缩过程中大部份氟蒸出.health effects of fluorine pollution氟污染对健康的影响If the fluorine content is high, it may increase plant corrosion.如果氟的含量高, 会加剧设备的腐...