They will change their tune when they find out the seriousness of the problem.当发现问题的严重性时,他们会改变态度的。Only later did he realize the full seriousness of his offence.他后来才意识到他的罪行有多严重。As time went on, people came to be aware of ...
a studious young man勤奋的小伙子She was a studious child, happiest when reading.她是个勤奋好学的孩子, 读书最使她感到快乐.He always pays studious attention to detail.他总是认真注意细节....