Plural forms on languages with nplurals=1 are confusing

[Nightgunner5]

This is an actual submission to my GlotPress, and I don't blame the submitter for not understanding what to do.

On languages with 1 singular and all other numbers plural, the interface is the best, with each form directly above the textarea. On languages with nplurals > 1, the interface is still easily understandable because it tells the user which numbers fit in each box.

On nplurals=1 languages, I think we either need a message explaining what goes in the box, or we can simply not show the singular form.

I think that change Chinese ($zh, $zh_cn, $zh_hk, $zh_sg, $zh_tw) to nplurals = 2 is better because sometimes singular and plural form are  different in Chinese. For example, "this" is "這個" , "these" is "這些"; and "he (she)" is "他 (她)" , "they" is "他們". The other situation is that original strings are "1 item" and "%s items" so we have to translate them in two forms.