51'

loom赫然耸起
surely
manifest 明显的
undergo: experience sth unpleasant

取得进步：make progress/advance/improvement

增长：increase/enhance

44'

make....possible

in turn

compound interest law 复利法则，滚雪球法则

tempo 速度

42'

trickle 涓涓细流

torrent 滔滔洪流

turn....to account 利用

55'

knowledge is a two-edged weapon which can be used equally for good or evil.知识是一把双刃刀，可以用于造福，也可用来为害。