万籁俱寂，夜深人静，窗外的细雨沙沙的打在梧桐树上，远方的亲人不知过得还好不好。家乡位于一个四面绕水的小岛上，想想生我养我的母亲河，童年的一幕幕映入脑海…离开故土故然心伤，然男儿志在四方，只是岁月匆匆，想起滔滔东逝的江水，不禁感叹：逝者如斯夫。

　　I always say when I have more time，l'd like to catch up on spending more time with my girlfriend.

　　(译文：我总是说当我有更多时间的时候，我要赶出多点的时间陪陪女友。)

　　是的，时间就像流水一般，失去的不再来，所以一定要catch up on something you have to do.这里catch up on something意思就是赶上某事，Catch up这个片语大家可能都知道是追赶(come to; overtake)的意思。如：

　　You have to work hard insgroupsto catch up with the rest of the class.

　　(译文：你要用功好追上班里其他人。)

　　而catch up on something常指完成原本应该做而暂时没有做的事情。

　　Now, I need to catch up on cleaning my bedroom, reading as well. But I think, the most important thing is to catch up on sleep. That's the best bet.

　　(译文：现在我需要打扫我的寝室，赶一赶要读的书，但我想最重要的还是赶一赶睡眠，这是最佳选择。)

　　时间就是袋子里的水，要靠挤才出得来.我们必须细心的寻找。

　　It's easy to find extra time. I have the feeling if something is truly important, the time may already be there, the only thing we have to do is to track the time down.

　　(译文：找点额外的时间并不难，我有这样的感觉：如果一些事情很重要，总有时间来完成他，我们唯一能做的就是把他找出来。)

　　片语track something down意思就是追查、寻找某事，track是“足迹”的意思，看到足迹就能追踪到留下足迹的人或动物了，所以这个片语应该很好理解吧！他的意思是“追捕到；找到，查到(尤指根据留下的线索)”即pursue until caught or captured; find or discover(esp.by following evidence that has been left behind)看一看英文解释：

　　Tracks are marks left in the ground by the feet of animals or people, or by the wheels of vehicles. If you track animals or people, you try to follow them by looking for the signs that they have left behind, like their tracks in the ground or other signs that they were there. To track someone or something down means to find them after a long difficult search as they didn't want to be found. For example, police track criminals down. Investigators track the truth down.

　　老师的解释很详细，很精彩哦！这个片语主要指通过一些努力，克服一些困难或根据一些证据、线索而查到、找到。接下来再看一两个例子：

　　It was not long before I tracked down the lost watch.

　　(译文：不久我就找到了遗失的表。)

　　The police have tracked down the escaped convict.

　　(译文：警察已追捕到逃犯。)

　　I always tried to track down different restaurants to eat Chinese food when I was abroad.

　　(译文：当我在国外时总是找些不同的餐厅品尝中国菜。)

　　好了，这一讲就到这里，我们主要围绕时间的话题为大家介绍了两个片语catch up on something赶上某事，往往有补充、补偿的意味在里面，如赶作业，赶瞌睡等。第二个片语是track something down意思是追赶上某事、追查到某事。

　　See you.

　　(本栏目是由世博英语(360abc.com)lifubingg原创编写，取材新颖，所讲习语全部选自最流行最时尚的美语.世博英语保留一切权利！未经书面授权，请勿转载！）