重点讲解：
1. more than 超过；超出；
He supervised and trained more than 400 volunteers.
他指导和培训了400多名志愿者OnC0_&f,J7bre。
2. according to 据（…所说）；按（…所报道）；
Heart disease is reversible in some cases, according to a study published last summer.
根据去年夏天公布的一项研究，心脏病在某些情况下是可以治愈的ffkeVSrRBqUQbR。
3. sign off 签署；
If you work without signing off the dole you are breaking the law.
如果就业后未注销领取失业救济金的登记视为触犯法律)M%Yv;*r_qvDt!。