翻译成英文：如果谁的电话号码有变更，请及时告知我，以便作修改和更新

If there is any change to your contact number, please tell me as soon as possible.

Please tell me in time to make adjustment and updating, if there are any changes of your phone-number.

Please keep me informed of the changes of everyone's telephone number, so I can update the telephone number list.

If your phone number change,pls tell me immediatly in order that I can revise and update it

基本就是楼上这样的.但是"以便...."那句没有翻译.不过也不要紧的

If anyone of you is changing your telephone number please inform me at the first time, in that wey I can make an adjustment and renovation.