1、That I am happy is the most important (thing).(意译）
2、What’s the most important is my happiness.
3、It's my happiness that is the most important (thing).(强调句,强调my happiness）
1、That I am happy is the most important (thing).(意译）
2、What’s the most important is my happiness.
3、It's my happiness that is the most important (thing).(强调句,强调my happiness）