(used after an adverb such as 不, 大, 稍 etc, and before a disyllabic verb, to indicate that the action of the verb is applied to sth or sb previously mentioned)
to apply (restrictions etc) to (sb)
to give (support, consideration etc) to (sth)
to increase
to augment
to append
下去
haa6 heoi3
(verb) Go down stairs (e.g. from certain floor to ground floor)
Learn Stroke Order
See how to write "突然間" with stroke-by-stroke animation