1/inform释义：
vt. 通知；告诉；报告
vi. 告发；告密
2/inform的例句有：
If there are any changes, please feel free to inform us.
如果有任何变动，请随时通知我们。
She was hesitant about whether to inform on his leader.
她对是否要告他的领导感到犹豫不决。
Many impressive songs are informed with sadness and regret.
许多给人以深刻印象的歌曲都弥漫着伤感和遗憾
