"under your thumb" in Chinese (Simplified)
在你的掌控之下
Definition
如果某人“在你的掌控之下”，意思是你完全控制他，他会按照你的意思行事。
Usage Notes (Chinese (Simplified))
属于非正式口语表达，用于描述一方完全控制另一方，多为贬义或调侃。常见搭配：“keep someone under your thumb”、“have someone under your thumb”。不用于正面影响的场合。
Examples
His boss keeps him under her thumb.
他的老板一直把他**在她的掌控之下**。
She feels like she is always under her mother's thumb.
她觉得自己总是**在妈妈的掌控之下**。
They are not under anyone's thumb now.
他们现在不再**受任何人掌控**。
He's totally under her thumb—he never makes a decision without her.
他完全**受她控制**——做任何决定都要问她。
After moving out, she realized she was finally not under anyone's thumb.
搬出去后，她才发现自己终于不再**受任何人掌控**。
Don't let your fear keep you under your boss's thumb.
不要让恐惧让你一直**被老板掌控**。