A：How could I inquiry my tolls?

我應該如何查詢我的費用？

B：You can install ETC app on your smartphone, then you can inquiry how much you need to pay.

您可以安裝 etc app 在您的智慧型手機上，然後您可以查詢您需要付多少費用。

A：What other functions do ETC app have?

ETC的app還有哪些功能呢？

B：You can inquiry road condition, top up, apply for e-parking service...

您可以查詢路況、儲值、申請智慧停車服務...

A：Wonderful , thank you.

真棒，謝謝您 。