Definition: to know why or how something happens or works, or how to do something Level: A2
科学家们正试图理解宇宙是如何形成的。
Scientists are trying to ___understand how the universe began.
我不明白为什么我的手机电池耗电这么快。
I don't ___understand why my phone battery drains so quickly.
课后，学生们终于明白了如何解这些数学题。
After the lesson, the students finally ___understand how to solve these maths problems.
