长足发展英语

自60年代问世以来,经历40余年的发展已经取得长足的进步,它 Since its introduction in the 1960s, it has made great strides in the development of more than 40 years

imsy excuse about wishing to see the French

I hope that our business relationships between （ ） by cooperation can be seen considerable expansion — with the english translation, online, etc. don't want to emphasize the fact that he was a huge cooperation and want to pass the bill have mutual understanding and further development, and

I hope to establish bussiness relationship with you by small order. And then, we can enter into a good commerce relationship with you by a lot of bussiness .and make a profit each other.

科学有了长足的发展Science has made great strides

对的 在过去的50年里over：在。。。。时期；直到。。。过后如：over several decades 在几十年中work over night 彻夜任务