给下列划线的字注音。
____
气魄
山巅
澎湃
浩荡
浊流
哺育
扮演
屏障
“沧海桑田”说明( )
下列有关生物学实验及操作的叙述，正确的是
Three years ago my parents encouraged me keyboard, but for some reason, I gave up.
