Is the "s" in "a plus" pronounced?
In the lessons, the "s" in the sentences "a plus" and "a plus tard" are prounounced. Is this a bug?
It depends on how the word is used. As an adverb, the word 'plus' can mean 'more' in which case the 's' is pronounced. The negation 'ne... plus' means 'no more', in which case the 's' is silent. This is particularly important as in spoken French the 'ne' of a negation is often dropped, so there is potential for the meaning of sentences to vary according to whether or not the 's' is pronounced.