1.When people feel happy, they will enhance the activation of normal cells and resist cancer cells, so your smile is worth millions.
人在心情愉悦的时候，会增强正常细胞活化，抵御癌细胞，所以你的笑价值百万
2.Since misery has pushed me to the edge of a precipice, let me sit down on the edge of the precipice, look at the mist beneath and sing a song to you.
苦难既然把我推到悬崖的边缘，那么就让我在这悬崖的边缘上坐下来，顺便看看悬崖下的流岚雾霭，唱支歌给你听。
activation[ˌæktɪˈveɪʃən]
n.激活；活化;产生放射性；放射化;加速；催化;活化处理；活化;（通过通风实现的）活化处理，活性化;
例句：
A computer controls the activation of an air bag.
计算机控制气囊的启动。
precipice[ˈpresɪpɪs]
n.崖壁;悬崖；峭壁;险境；危局；绝境;
