英语翻译
问题描述：
英语翻译
1.We found the principles .(容易理解)
2.The book (据说) have been translated into Chinese.
3.(随着年龄的增长) she gained in confidence.
4.It's (一件令人宽慰的事) to know that she is safe in that city.
答
easy to understand
is said to
with age's increasing
a reassuring thing