telltale
US
UK telltale (UK), tattletale (US) n: informal (informant, gossip)
SC 告密者 gào mì zhě
SC 泄密者 gào mì zhě，xiè mì zhě
The gang eventually found the telltale and killed him.
Bobby is a tattletale who always reports his brother's wrongdoing to his mother.
telltale adj: informal, figurative (revealing)
SC 说明问题的 shuō míng wèn tí de
SC 泄露秘密的 shuō míng wèn tí de，xiè lù mì mì de
Pus-filled sores are a telltale symptom of chicken pox.
telltale, tell-tale, tell-tail n: (nautical: indicates air flow) (航海)
SC 航角指示器
The sailor struggled to repair the tell-tale during the storm.
telltale sign n: informal (indication) (非正式用语)
SC 易识标志，指示标识 yì shí biāo zhì，zhǐ shì biāo shí
Spots of blood were a telltale sign that a violent crime had been committed.