extraneous
01
无关的, 不必要的
unnecessary or unrelated to the matter or subject at hand
Disapproving
Formal
例子
In order to improve the clarity of the presentation, the speaker decided to eliminate extraneous slides that did not contribute to the main message.
为了提高演讲的清晰度，演讲者决定删除那些对主要信息没有贡献的无关幻灯片。
02
从外部添加的, 外部附加的
physically added or attached from outside, but not originally part of the object itself
例子
The robot malfunctioned due to extraneous metal fragments lodged in its joints.
机器人因关节中卡住的外来金属碎片而发生故障。
