Whether he will continue to be successful in future is open to doubt.
他今后能否继续获得成功值得怀疑。
《牛津词典》
2
Here, we open the door toward the future by upgrading industries.
在这里，我们升级产业，打开未来之门。
3
This, combined with a handwritten thank-you note, will make the best possible impression and leave the door open for future follow-up-which you should do, of course!