Ascertaining
vt. 确定；查明；探知
🗣️ 情景例句
And plus, if you are not completely satisfied, you can return it to us.
并且，如果您不是百分百的满意，你可以将产品退还给我们。
My mother mailed me a parcel.
我妈给我寄了一个包裹。
No, that would be fine. I'll tell you how to get here.
不晚，就这么定了。我告诉你到这儿来怎么走。