On Tuesday, the police officially filed charges against Jeffers.星期二，警方正式对杰弗斯提出指控。Dr Gerald Jeffers is the guest speaker.杰拉尔德·杰弗斯博士是特邀演讲人。Jeffers lay stunned on the floor.杰弗斯昏倒在地板上。Dr Jeffers' book should give readers a better understanding of themselves.杰弗斯博士的书应该会使读者更清楚地了解自己。