separate audio for each sentence with corresponding file name

[omega3]

I have a spreadsheet with two columns, first column is a sentence number, second column contains sentences. Like this:
01 This is sentence one.
02 This is sentence two.

For each sentence I want to produce separate audio file.

Can you help me and tell me how to use translate shell to produce audio output files that as a name have number of the sentence, so that I know which file contains which sentence?

It may be exported as csv.

I know I need to use:

trans -sp -n US,f -no-translate -e google -i source.csv -download-audio-as name.mp3

1. Do I need to have a separate file for each single sentence and loop this command or can I have all sentences in one file?

2. If loop is needed how can I do it?

3. Do I need some breaks like a second or so, between each query to not overload google, to not cause some blockade?