sorts 类型
soft 轻柔
rock 摇滚
classical 古典
light 轻
pop 流行
musical family 音乐世家
life colorful 生活丰富多彩
protect sth/sb from doing 保护某人或某物免受
stop sb(from)doing 阻止某人做某事
knock into 撞上
knock at 敲门
knock on 敲
knock down 拆除
make a living 靠……谋生
expect to do sth 期望去做某事
it takes+sb+to do sth 花时间做某事
have trouble (in)doing sth 做某事有困难
have no trouble in doing sth 毫不费力地做某事
will表将来要做的动作 +动词原形
祈使句+动词原形