31.“成功/失败”:make it; succeed; make progress; come true; realize one’s dream; win; lose; fail to do; defeat; suffer loss; beat; turn sth. into reality 32.“努力”:try /manage; make efforts; attempt ; do one's...
period: It indicates any passage of time, great or small. /an extent of time of any length. (时代) time(s): It refers to a period in history. in ancient times/ in Victoria time (新时代) epoch: It indicates a long period of time marked by event...
如图所示，一光滑平行金属轨道平面与水平面成θ角，两道轨上端用一电阻R相连，该装置处于匀强磁场中，磁场方向垂直轨道平面向上.质量为m的金属杆ab，以初速度v0从轨道底端向上滑行，滑行到某一高度h后又返回到底端.若运动过程中，金属杆始终保持与导轨垂直且接触良好，且轨道与金属杆的电阻均忽略不计，则（ ）
Today’s new Labor Department report showing that the economy lost jobs last month, the first loss this year, seems in stark contrast to where the president and the Congress are focusing their attentio...
A: Research shows that the number of trips made by plane is increasing, which makes the airplane become one of the major means of transportation now. So, don’t worry. It also saves quite more time than the train. B: That is...