v make certain of
v be careful or certain to do something; make certain of something
vt. 确定, 保证, 担保, 保护
[经] 确保, 确定
1. We need to ensure that everyone arrives on time.
我们需要确保每个人按时到达。
2. The teacher will ensure that all students understand the lesson.
老师会确保所有学生理解这节课。
3. Please ensure you lock the door before leaving.
请确保在离开之前锁好门。