1. We were happy to hear of your son's arrival.
欣闻你喜得贵子.
2. We were delighted to know that Mrs. Spencer gave birth to a boy last week.
我们高兴地获知斯宾塞夫人上周喜得贵子.
3. Congratulations on your new baby!
祝你喜得贵子.
4. The news of your daughter's birth reached me yesterday.
昨日获悉令媛诞生.
5. I hope both mother and daughter are doing well.
我希望你们母女平安.