英语翻译
问题描述：
英语翻译
1.我们要是不让妈妈知道我们住在哪里,他会放心不下.(upset)
2.要使足球迷们平静下来是很困难的.(calm down)
3.如果我们把这些分数加起来,总分就有90分了.(add up)
4.他不放心你的安全.(concerned)
5.过马路时,注意过往的车辆.（while)
答
1. If we don't let our mom know where we are, she will be upset.2. Calming the football fans down is very difficult.3. If we add these marks up, the total would be 90.4. He is concerned with your safe...