He could not grasp what was happening.
他不能理解正在发生的事。
Are you alive to what is going on?
你注意到正在发生的事吗?
Symptoms of malaria are developing up.
疟疾的症状正在发生。
The students are observing the behavior of tin under heat.
学生们正在观察锡受热发生的变化.
In convenient circumstances something really interesting may be created.
在轻松的环境下，真正有趣的事会发生。
The social appearnce is changing tremendously now.
社会的精神面貌正在发生巨大的变化
The mission of academic is taking place great change.
学术的使命正在发生重要的变化。
happen, occur, or be the case in the course of events or by chance.
碰巧发生发现或正好在事情的进程中存在。
It is possible that the weather of the world may be changing.
全球的气候正在发生变化，
(of growing vegetation) having just emerged from the ground.
（正在生长的植物）刚从地面发芽出来。
Generating trigger script for article '%1'
正在生成项目“%1”的触发器脚本
"The world is undergoing profound changes:,,"
世界正在发生深刻的变化:
The contrary of this happens in a year of sudden and extraordinary scarcity.
在突然发生的非常大荒年，情形正相反。
The student researched the history of that word.
这个学生正在调查这个词的发展史。
The students' thoughts are at the stage of forming and growing.
学生的思想正处在形成和发展阶段
Japan's political scene is undergoing significant changes.
日本政治的走向正在发生重大变化。
The world as we know it is going to change rapidly!
我们所熟悉的世界正在发生巨变！
The real breakthrough came in the year 2001.
真正的突破还是发生在2001年。