1 exert further upward

1 exert further upward upward bound further have/exert an influence On what interval is the curve y = x ln(x - 1) concave upward upward appraisal是什么意思 to move suddenly upward suddenly upward 是副词词组吗? Leave further and further farther further Drifting further and further away Get away further and further 帮我翻译下这句英文,：exert to find the target