No matter how bad/frustrated/terrible you are feeling,just smile to your life.
No matter what kind of situation/frustration you are facing in your life,just keep smiling.
不管有多么不开心,都要微笑面对生活
show your smile no matter how unhappy you are!
However sorrow,you should keep a sweet smile to face your life.
No matter how depressed,smile to life!
whatever how unhappy you are, smile and face your life