Hxen.com's tips：Every day persisted can learn English well!-->■Learn English Everyday■
off track远离
例句：His explanation of this problem threw all the students off track.
他对这道题的讲解使所有的学生摸不着头脑。
What you just said is completely off the track
你刚才讲的话彻底离题了。
2.President Obama has acknowledged that times are still very hard for many Americans in the wake of the global financial crisis.
in the wake of尾随,紧跟,仿效
例句：Traders came in the wake of the explorers.
商人紧跟着探险者而至。
3.President Raul Castro of Cuba has sacked the cabinet minister responsible for basic industry including oil and nickel production.
be responsible for为...负责,形成...的原因
例句：He is responsible for the assignment of jobs.
他负责分派工作。
4.She made the admission in a TV show 11 years ago, and the tape resurfaced over the weekend. Her views on sexuality have also come under heavy scrutiny.
under scrutiny受到密切注意
例句：That is not the only bit of the accord under scrutiny.
这不是协议唯一遭受仔细检查的部分。
