leer|leered|leering

那个男人恶心的眼神让她感到很不舒服。

The man's disgusting ___leer made her feel very uncomfortable.

那个男人邪恶地斜眼看着路过的女孩。

The man ___leered maliciously at the passing girl.

他总是色眯眯地盯着年轻女孩，让人感到很不舒服。

He keeps ___leering at the young girls, which makes everyone uneasy.