(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
回
wui4
return
湯匙
tong1 ci4
soup spoon
老抽
lou5 cau3
dark soy sauce
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See how to write "老抽" with stroke-by-stroke animation