HSK4B Standard Course Lesson18 Part2| Science，technology and the world | HSK4 标准教程 第十八课《科技与世界》课文2 

太谢谢你了🙇😊

39老师👩🏻‍🏫❤🎉

老师好，请问您：什么时候用秒，什么时候用秒钟？

莹老师 I see that movie viewership is very low. I believe that allowing subtitles to be turned on and off while watching films could increase the number of viewers. I don't want to put pressure on you, but I repeat the offer to send my subtitles. We can do this as a test with the last video. I just need an address to send the file to. This can be a special email address intended only for these purposes, not your private one. Inserting this file into a video using RU-vid Studio is very simple. You can put your email address in the About tab. It promises complete security and privacy. No other messages. This is the last time I'm bringing up this topic and I won't bother you again. I should definitely find time to prepare one file a week. Maybe even two, because I make them for myself too. Thank you for your knowledge and the time you share with us.