underestimating造句

" I'm afraid you're underestimating them, Sun -- fu .
“ 荪 甫, 太把他们看得不值钱了.

I think you should raise your sights. You're underestimating yourself.
我认为你应该有远大志向, 你过于低估自己了.

Modern - fiction theories have perpetually been underestimating the author's position.
在现代小说学中,作者的地位不断降低.