我很欣慰英文翻译

I am gratified to see your smile.

地铁，在欧洲称为metro，在美国称为subway， 在英国称为underground 或者tube。 在中国按metro标记。 因此可翻译为：In addition, the metro lines are being constructed in our city. I'm very pleased for it.are being constructed 现在进行时的被动语态。

In addition, the city of our city is still under construction, I am very happy.の求采纳

Seeing your smile, I feel very delighted