"the presentation of new data"
"he gave the customer a demonstration"
"he confused the enemy with feints and demonstrations"
"there were violent demonstrations against the war"
"the lecture was accompanied by dramatic demonstrations"
"the lecturer shot off a pistol as a demonstration of the startle response"
He dares not be comical; his fun must escape from him unprepared, and..be unaccompanied by any physical demonstration.
出自： R. L. Stevenson
She was not given to demonstrations of motherly fondness in company.
出自： E. Templeton