1.People are getting used to the idea of online shopping, they're getting used to the idea of mobile.
get used to 習慣于…
You will soon become [get] used to the weather here.
你很快就會習慣這里的氣候 。
Driving on the left is strange at first but you get used to it.
沿著路的左側駕車剛開始時有些別扭,可是習慣就好了 。
2.What I find that is working in South Africa, is if you build an app that is relevant to the country because it solves a local problem.
relevant to 有關的,相應的;與…有關的
These comments are not directly relevant to this enquiry.
這些意見與這項調查沒有直接聯系 。
I don't think his remarks are relevant to our discussion.
我認為他的話不切我們的議題 。