成天受嘲讽是很令人泄气的.It's very discouraging to be sneered at all the time.上座人数一直持续下降，使得戏剧导演产生悲观泄气的情绪。Attendance figures had been steadily dropping, creating a mood of doom and discouragement among theatre directors.令人泄气的环境对...
Lucius got apprenticed to a stonemason.卢修斯成了石匠的学徒。When I was old enough, I was to be apprenticed to Joe.等我达到了一定的年龄, 就可以跟乔做学徒.Greg apprenticed with his uncle, who was a talented carpenter.格雷戈曾经当过他伯父的学徒, 他伯父是一位很有才华的木匠....
市场需要替代传统灭火剂的产品出现.Market needs instead of the traditional fire - extinguishing agent of products.新研制成的灭火剂已经大规模投入生产了.The newly developed extinguisher has been put into mass production.适用灭火剂: 泡沫及粉末灭火剂.Suitable Extinguishing...