Seriously pay attention to seriousness and formality, often with announcements, notices, statements and other words.
Grand, solemn, characterized by grand, solemn and special attention.
A grand state banquet
Grand etiquette
serious
Not easy to solve, important or influential.
The serious problem is to educate farmers.
Serious error
Heavy [Chen zhé ng]
Be in a heavy mood, extremely worried or uneasy (heavy mood)