Sentence:  Break time! Blocks Encouragement Post #4' [post on school's webpage]: Hwa Chong, Hwa Chong, <WSD>Chiong</WSD> ah, <WSD>Chiong</WSD> ah! Our block tests will be starting in 3 days! For those of you who have not been spending much time on studying, IT'S TIME TO START. 
Meaning of the word marked with <WSD> tags:  To devote all of one's time, energy, focus, and attention to doing or completing something.