这种病的起因不明。
大多数时候, 高血压起因不明, 一旦形成, 则通常会伴随人们一生, 但是它是可以控制治疗的。
Once it develops, high blood pressure usually lasts the rest of the person's life. But it is treatable.
据CNN在现场的报道团队称，这座40层的文华酒店的起因尚不明确，尚无伤亡报告。
The cause of the blaze at the 40-story Mandarin Oriental is not known and there were no reports of injuries, according to CNN staff members who were at the scene.
应用推荐