attrib.
- revealing, indicating, or betraying something泄露秘密的, 暴露内情的; 搬弄是非的; 露出马脚的：
the telltale bulge of a concealed weapon.
暴露隐藏武器的凸起。
1
- a person, especially a child, who reports others' wrongdoings or reveals their secrets（尤指儿童）告密者, 打小报告者; 搬弄是非者。
2
- a device or object that automatically gives a visual indication of the state or presence of something指示器（或装置）。