Uber Technologies Inc. CEO Travis Kalanick is likely to take a leave of absence from the troubled ride-hailing company, but no final decision has yet been made, according to a source.知情人士称，优步技术股份有限公司总裁特拉维斯·卡拉尼克可

Uber CEO Travis Kalanick sent a letter to employees announcing a leave of absence. He did not specify when he would be back. In this email, he wrote:优步首席执行官特拉维斯·卡兰尼克给员工发了一封邮件，宣布自己暂时休假，并未说明何时会回到公

　　It is a debate that has raged since Titanic became one of the most successful films of all time: Did Rose leave Jack to die by not letting him up on the makeshift lifeboat as they floated in the oce