run
run after与catch up with的区别？
after与catch up with的区别？
Run after 是追赶，而catch up with 跟上。例如I I run after him and I he run to fast, I cant catch up with him. 我追他，但是他跑得太快，我跟不上他。
play catch-up是什么意思？
play catch-up追赶双语对照例句:
will continue to play catch-up with china for some time as coverage ispatchy. 由于网络覆盖仍不完善，印度在未来一段时间内将继续追赶中国。
u.s. government has tried to help the nations renewable energy industrywith$ 500 million in grants--but it will likely take a while for u.s. wind powermanufacturers to play catch-up after struggling with an uneven market. 美国联邦政府最近拨出了5亿美元的津贴来帮助美国繁荣可再生能源行业但在目前这种市场占有严重不均衡的情况下，美国风电设备生产商要想迎头赶上还得着实下一番功夫。.很高兴为你解答！如有不懂，请追问。 谢谢！
catch的动词六大形式？
一、第三人称单数形式为catches，例句 The net catches the junk and then pulls it into the earth#39s atmosphere to burn up.意为:这个网捕捉到垃圾,然后把它拉到地球大气层中燃烧。
二、一般现在时为catch，例句 Sorry, I didn#39t quite catch what you said.意为:对不起，我没听清楚你的话。
三、现在分词为catching.
四、过去分词为caught，例句 Hecaughthold of her wrists so she couldn#39t get away.意为:他抓住她的手腕，使她无法挣脱。
五、过去式为caught，例句 He wascaughtwith bomb-making equipment in his home.意为他被发现家里藏有制造炸弹的设备。
六、动词不定式为to catch，例句 A pail stood in one corner of the room to catch the drips where the roof leaked.意为:房间的一角放着一个提桶，以接住从屋顶漏下来的水滴。