Selenicon
硒层视象管
🗣️ 情景例句
The only thing holding us back is our financial situation.
只是财政状况未许可，所以才拖延到现在。
It's about seventy degrees Fahrenheit this afternoon.
今天下午的温度大约70华氏度。
What kind of quality control do you have?
你们用什么办法来控制质量呢？