音信全无 meaning in English

have not heard from sb. ever since

Merseyside police spokesman said the two cars have been found , but the dog is still missing
默西塞德郡警方的一位发言人表示，失窃的两辆轿车已经找到，但那只狗却仍然音信全无。
A merseyside police spokesman said the two cars have been found , but the dog is still missing
默西塞德郡警方的一位发言人表示，失窃的两辆轿车已经找到，但那只狗却仍然音信全无。
The latter wondered at this strange silence , thought carrie must have left the city , and in the end gave her up as lost
万斯太太感到奇怪，怎么会这样音信全无，以为嘉莉一定是离开了这座城市，最后就当她失踪了，不再去想她。
She stared at the check in disbelief and called her staff members to come and take a look at it , saying , " all this time , we have been wanting to build a water supply system for malinan village . we have requested help from the government but three months have passed and we still haven t received an answer . we never expected that someone from formosa would come to help us .
处长支票，期望她赶快找人动工，她不敢相信地睁大著眼睛，叫部门里的职员一起来看支票，她说：我们想要在马里南这个村庄做一个供水系统来帮助人民，但跟政府请求帮忙，三个多月来音信全无，想不到会有人从福尔摩沙来帮我们做。