按赞

to give sb a thumbs-up (on social media)

to press / to push / to leave aside or shelve / to control / to restrain / to keep one's hand on / to check or refer to / according to / in the light of / (of an editor or author) to make a comment

variant of 讚|赞[zan4]

variant of 贊|赞[zan4] / to praise

variant of 贊|赞[zan4]

to patronize / to support / to praise / (Internet slang) to like (an online post on Facebook etc)