21번. 다음 빈칸에 들어갈 말로 가장 적절한 것을 고르시오.If you base your sense of worth on how well you climb, you're likely to be affected by outside factors. These outside influences can be unpredictable and may not reflect your actual ability. One common example is comparing yourself with others. You might feel like you did well on a climb just because your partner was having a bad day and found it really hard. Si..