As an elite student of the class, she is capable of answering these mathematics questions.
In order to have enough money to go oversea, you can not say that you are going way too thrifty.
I afraid that they are caught in a traffic jam.
英语中译英作为班上的尖子学生,她有能力解答这些数学题(capable)为了承担得起出国的费用,你无论怎样节俭都是不过分的