巨型: giant, enormous...
骨干: diaphysis (long segment of a bone), backbone...
不良: bad, harmful, unhealthy...
傍晚: in the evening, when night falls, towards evening, at night fall, at dusk...
停顿: to halt, to break off, pause (in speech)...
纳税人: taxpayer...
台上: on stage...
增长: to grow, to increase...
钥匙: key...
上游: upper reaches (of a river), upper level, upper echelon, upstream...