讲演

讲演	jiǎng yǎn	to lecture / to speak publicly
讲	jiǎng	to speak / to explain / to negotiate / to emphasize / to be particular about / as far as sth is concerned / speech / lecture
演	yǎn	to perform (a play etc); to stage (a show) / (bound form) to develop; to play out; to carry out (a task)