You may have the worst of your worries when you most appear to be at ease.

阿根廷，以格瓦拉名言“直到最后的胜利”为名的关于格瓦拉生平的记传片在布宜诺斯艾利斯首映，4万人云集首都足球场，各国歌手纪念

This was a very short visit, but it plunged the little prince into deep dejection.

Coal will remain a vital energy source, but only if we evolve with the times.