The seaside town is a tourist area. What kind of business can be done with low cost and high monthly income?

Do this:

The premise is that you must first have the audio of the pronunciation of the word. You can record it yourself, but remember to save it in wav format. It seems that the voice recorder that comes with Windows can record it.

After recording, select the word in the ppt, right-click to select action settings, go in and select play sound at the bottom, find the file you recorded, and that's it.

In this way, when the mouse moves over the word, it will turn into a hand shape, and the sound will automatically play when clicked.

If there are multiple words that need to be read, record a wav file for each word and insert them one by one as above.

For very small wav audio files, ppt is embedded by default, so when playing it on the school computer, you only need to copy the ppt. As for how big a wav can be embedded, you can adjust it yourself. To be on the safe side, you click the "Tools" button and select "Options", then select "General" and set the "Linked file is not smaller than..." to 50000, so that as long as the audio file is not larger than 50000kb, it will be automatically embedded in the ppt . (I guess no one will insert 50m audio

o(∩_∩)o~)

In this way, you only need to copy the prepared ppt to the school computer.