“难得的”的英语可以翻译为：god-given，hard-won，scarce，uncommon ...

有电视看对于老年人来说是难得的好事.A TV can be a real blessing for old people.认识你是一件难得的事.It is a great privilege to know you.坐失这个良机, 那是太傻了,这是一生中难得的机会.It would be foolish to let such an opportunity slip; it's a chance of a lifetime....