have something/be written all over your faceOBVIOUSto show very clearly what you are feeling or thinking 脸上明显表露出〔感受或想法〕 He had guilt written all over his face. 他满脸内疚。
I know you’re lying, Tyrell – it’s written all over your face. 我知道你在撒谎，蒂雷尔——你脸上明明白白写着呢。
→ have something/be written all over your face at write(1)