I'm looking for more of a challenge
我在寻找一个更大的挑战
My previous company wasn't able to respond to the challenge of globalization.
我以前的公司不能能够对全球化的挑战作出回应。
I'm eager to take up a bigger challenge.
我急于采取了一个更大的挑战。
I don't think my previous job was enough of a real challenge for me.
我不认为我以前的工作是不够给我一个真正的挑战的。