demonstrate

Each student must demonstrate mastery of the subject matter in order to pass the class.每个学生都必须证明自己掌握了这门专业知识才能通过课程考核。

Employees must demonstrate competence in certain skills before they can work independently.员工必须证明自己具备某些技能才能独立工作。

The medication will not be marketed until it is demonstrated to be safe.这种药物在被证实安全之前，将不会投入市场。

The town's crowded classrooms demonstrate [=point to] the need for more schools in the area.小镇拥挤的教室表明这一地区需要更多的学校。

The latest test results clearly demonstrate that the vaccine works.最新实验结果明确显示，这种疫苗有效。

The group's failed efforts demonstrate how difficult it is to convince people to change their habits.这个组织失败的尝试表明，说服人们去改变习惯是多么困难。

They have demonstrated a willingness to negotiate.他们表示出谈判的意愿。

Several people will be demonstrating traditional farming techniques.几个人将演示传统的农耕技术。

The instructor demonstrated the correct procedure for pruning a tree.指导者演示了修剪树木的正确步骤。

Would you mind demonstrating how the machine works?您能演示一下这台机器是如何运作的吗？

A large crowd was demonstrating [=protesting] downtown.一大群人在市中心举行示威游行。

Protesters demonstrated against the war.抗议者进行反战游行。