tie someone (up) in knots
US /taɪ ˈsʌm.wʌn ʌp ɪn nɑːts/
UK /taɪ ˈsʌm.wʌn ʌp ɪn nɑːts/

1.
使某人困惑, 使某人非常焦虑
to confuse someone or make them feel very worried or anxious
:
•
The complicated instructions really tied me up in knots.
那些复杂的说明真的把我搞糊涂了。
•
The thought of the exam is tying her up in knots.
一想到考试就让她非常焦虑。