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
I'm afraid not. We don't generally accept a letter of credit.
恐怕不行，我们一般不采用信用卡。
Does his film appeal to you?
你喜欢他的电影吗？
Often, we help them with the harvest.
我们经常帮助他们收割。