launch into的用法和樣例：
例句
- I rolled up my sleeves and pitched into cleaning the kitchen.
我捲起袖子，大搞廚房衛生。 - In those days, China turned into a totalitarian madhouse focused on the personality cult of leader Mao Zedong.
那時候，中國的極權統治登峰造極，對毛澤東大搞個人崇拜。 - Tom put his heart and soul into the work.
湯姆全心全意地投身於工作之中。 - An urge to improve society led me into politics.
推動社會進步的強烈願望使我投身於政治。
