1·He watched her balefully.
他看着她，眼露恶意。
—— 《柯林斯英汉双解大词典》
2·It was also - as the site says, balefully glaring at me - an experiment to see how much of this stuff would work for me.
就像网上所说的，一项实验正紧紧地盯着我，看我这个网站是如何为我工作的。