Optical indicator
[机] 光学指示器
🧩 词语组成解析
indicator
['ɪndɪketɚ]
n. 指示器;[化]指示剂;指示者;
🗣️ 情景例句
If it sounds like an interesting place to visit, that's because it is.
如果它听起来像是个有趣的地方，那是因为它的确是这样。
What soberness conceals, drunkenness reveals.
醉汉口里露真言。
Where's her hat? Is it under her chair?
她的帽子在那里，是在她的椅子底下吗？