饼干 biscuit 难道 emphatic 得 must 坚持 persist 放弃 give up 主意 idea 网球 tennis 国际 international 轻松 relaxed 赢 win 随便 casual 汗 sweat 通过 through 篇 measure word 作家 writer 当时 then 可是 but 正确 correct 理想 ideal 勇敢 brave 结果 result 失败 fail 过程 process 至少 at least 总结 sum up 取 gain 经历 go through 许多 many 区别 difference 暂时 temporary 面对 face