indistinguishable
adj ~ (from sth) that cannot be identified as different or distinct; (virtually) identical 不能区别的; 无法辨别的; (实际上)完全相同的
Its colour makes the moth indistinguishable from the branch it rests on. 这蛾子停在树枝上, 其颜色和树枝几不可辨.
🗣️ 情景例句
It is important to speak directly and clearly about your subject.