重點講解：
1. watch out
小心，提防（不愉快的事情或陷入困境）；
eg. I advised them to watch out for slick spots on the sidewalk.
我叫他們當心人行道上路滑的地方O6OeWq1p*-。
eg. Watch out that you don't get them into trouble.
當心，別讓他們碰到麻煩a2w1IQzUKj[PY。
2. jump the gun
搶先行動；過早地行動；
eg. It wasn't due to be released until September 10, but some booksellers have jumped the gun and decided to sell it early.
這本書定于9月10號發行，但是一些書商已搶先一步，決定提前銷售Ef3BN77SVlu2l。
eg. Don't jump the gun. We need a further discussion.
不要草率行事，我們還需要作進一步討論)g..hv.~3yBNSrixR。
3. switch off
關掉，關上（電燈等）；
eg. If the result seems a foregone conclusion, people switch off.
如果比賽似乎將要發展成賽前預料的結局，很多觀眾將選擇關掉電視機MUff~m(BHiC#_r.]r。
eg. Always switch off the power supply after using electrical equipment.
電氣設備使用完畢后，一定要關掉電源mr;p~y_y~b^x。
4. be eager to do sth.
熱切的；渴望做某事；
eg. I'm eager to know what your decision is.
我急于想知道你的決定是什么y85N(rBp(U@RMaREB(~。
eg. He is eager to make a parade of his own abilities.
他急于炫耀自己的才干^7Jk.;1a#y1hG5%uvm。
5. gun down
槍殺；開槍射傷；
eg. He had been gunned down and killed at point-blank range.
他被近距離開槍射殺k;C_JMJ45x%*j]wE[。
eg. He is gunned down in the street outside his office.
他在他辦公室外的街上被槍殺F2d+2uz7f#CCDW。