网易公开课

公开赛 gōngkāisài #14,972

open championship / open (as in 'the US Open')

公开 gōngkāi HSK 3 #2,465

open / public / to make public

公开信 gōngkāixìn HSK 7 #50,889

open letter

开诚布公 kāichéngbùgōng #9,625

to be frank and open; to speak candidly / to deal with someone honestly and fairly

开放 kāifàng HSK 3 #4,568

to open up; to be open (to the public) / open; liberal; open-minded

敞开 chǎngkāi HSK 7 #4,618

to open wide / to throw open

张开 zhāngkāi #5,549

to open up / to spread / to stretch open

开门 kāimén #1,947

to open a door / to open for business / to begin; to start

切开 qiēkāi #6,307

to cut open / to slice open

开通 kāitōng HSK 6 #5,235

to open (a service, route, line) / to activate; to make operational