A simple "thank you" lets the senders know that their email has arrived safely, that it has not been lost among what could be 50 other emails that have arrived in your email inbox that day.
2018年12月四级真题（第二套）听力 Section C
英语六级真题
A lot of the government advertising has been about individual responsibility, but actually understanding that drinking is very much about the social activity and finding ways to help young people get home safely and not end up in hospital is one of the th
2017年6月六级真题（第二套）听力 Section C
During the trials, the robot algorithms (算法) and mechanics will be fine-tuned to make it better suited to ailing livestock and ensure it safely navigates around potential hazards including trees, mud, swamps, and hills.
2018年12月六级真题（第三套）阅读 Section C
柯林斯高阶英汉双解学习词典释义
ADV-GRADED
安全地;无危害地
If something is done safely, it is done in a way that makes it unlikely that anyone will be harmed.