demonstrate
/ˈdemənstreɪt/verb
1
- with obj. clearly show the existence or truth of (something) by giving proof or evidence证明, 证实：
their shameful silence demonstrates their ineptitude.
他们不体面的沉默证明了他们的无能。
1.1
- give a practical exhibition and explanation of (how a machine, skill, or craft works or is performed)演示：
computerized design methods will be demonstrated
将要演示利用计算机进行设计的各种方法
with clause she demonstrated how to cook chops.她演示如何烧排骨。
1.2
- show or express (a feeling or quality) by one's actions显示, 表露（感情）; 表现（品质）：
she began to demonstrate a new-found confidence.
她开始表现出新近确立起来的自信。
2
- no obj. take part in a public demonstration参加（公众示威）游行（或集会）：
thousands demonstrated in favour of the government.
成千上万的民众游行支持政府。
词源
mid 16th cent. （in the sense 'point out'）： from Latin demonstrat- 'pointed out'， from the verb demonstrare.