"Please stop on the left side."

Translation: 请靠左边停。

[tim981145]

What is the purpose of 靠 here? What does it mean in this context?

[MintKang1]

靠 means 'alongside' in this context. It's grammatically and formally correct, but not strictly necessary for getting the meaning across, same as 'side' in the original sentence.

[Luoling97]

Native English-speaking Chinese teacher here. The cottect answers thus far are a bit too grammatically constricting (differing sentence orders are also acceptable in many instances despite your program marking them "incorrect").

[wbeeman]

Several word orders are correct, but marked wrong

[medjzL]

Thank you Luoling97.
Duo has been pretty good actually about accepting suggestions for more flexible answers for English translation vs transliteration from me at least, but I have a sense that "some" initial answer was provided for each question (by multiple sources judging by the inconsistencies) and then new they crowd-source suggestions from users feedback/complaints and check for basic validity before adopting some as alternative answer options. That would mean the answers become more flexible over time, but unevenly and more/sooner in earliest questions...which lines up with what I have seen.