tā / yǐ / qián / cháng / cháng / cān / jiā / bǐ / sài / suǒ / yǐ / miàn / duì / zhè / yàng / de / chǎng / miàn / yǐ / jīng / jià / qīng / jiù / shú / le

她以前常常参加比赛，所以面对这样的场面已经驾轻就熟了。

She used to take part in competitions often, so she is already very comfortable in situations like this.