On the client side, very time-consuming operations should run asynchronously so as to avoid freezing the browser. The best example is the operation of Ajax.
Mandarin
任何境遇都是宇宙给你的机会，假如你懂得利用、抓紧它。它将是你一生的财富。假如你遗漏、放弃或者没有做出积极的响应，宇宙会让这次机会在下一个时间、地点，和其他人重新来过。但在其中，你失去的是最宝贵的时间！知错就改，把握当下；在合适的尺度下，能跳就跳吧，能唱就唱吧，能疯就疯吧，能闹就闹吧。
任何境遇都是宇宙給你的機會，假如你懂得利用、抓緊它。它將是你一生的財富。假如你遺漏、放棄或者沒有做出積極的響應，宇宙會讓這次機會在下一個時間、地點，和其他人重新來過。但在其中，你失去的是最寶貴的時間！知錯就改，把握當下；在合適的尺度下，能跳就跳吧，能唱就唱吧，能瘋就瘋吧，能鬧就鬧吧。
rèn hé jìng yù dōu shì yǔ zhòu gěi nǐ de jī huì ， jiǎ rú nǐ dǒng de lì yòng 、 zhuā jǐn tā 。 tā jiāng shì nǐ yī shēng de cái fù 。 jiǎ rú nǐ yí lòu 、 fàng qì huò zhě méi yǒu zuò chū jī jí de xiǎng yìng ， yǔ zhòu huì ràng zhè cì jī huì zài xià yí gè shí jiān 、 dì diǎn ， hé qí tā rén chóng xīn lái guò 。 dàn zài qí zhōng ， nǐ shī qù de shì zuì bǎo guì de shí jiān ！ zhī cuò jiù gǎi ， bǎ wò dāng xià ； zài hé shì de chǐ dù xià ， néng tiào jiù tiào ba ， néng chàng jiù chàng ba ， néng fēng jiù fēng ba ， néng nào jiù nào ba 。
Every situation is an opportunity given to you by the universe. If you know how to make the most out of that situation, do it. It will be a wealth that lasts you a lifetime. If you missed out, gave up, or didn't even attempt to take advantage of the opportunity, the universe will set this chance aside for the next person, in a different time and place. But what's most important is that you lost precious time. Understand what you did wrong, and control the present. Then with proper restraint, if you can dance, dance. If you can sing, sing. If you can be wild, be wild. If you can be lively, be lively.
Joyful, all ye nations, rise, Join the triumph of the skies [Original English lyrics] Rise up! nations of the earth, big and small, Sing praises together in response to the skies [Literal English translation]
Mandarin
经济危机、战争、对当前布什政府政策的不满，是奥巴马得以当选的主要原因，这些因素导致人心思变，对奥巴马提出的“变革”的竞选口号做出了积极响应。
經濟危機、戰爭、對當前布什政府政策的不滿，是奧巴馬得以當選的主要原因，這些因素導致人心思變，對奧巴馬提出的“變革”的競選口號做出了積極響應。
jīng jì wēi jī ， zhàn zhēng ， duì dāng qián bù shén zhèng fǔ zhèng cè de bù mǎn ， shì ào bā mǎ dé yǐ dāng xuǎn de zhǔ yào yuán yīn ， zhè xiē yīn sù dǎo zhì rén xīn sī biàn ， duì ào bā mǎ tí chū de “ biàn gé ” de jìng xuǎn kǒu hào zuò chū le jī jí xiǎng yìng ．
The economic crisis, the Iraq War and dissatisfaction with the Bush administration were the main why Obama was elected. Americans were longing for change and responded enthusiastically to Obama's campaign slogan of "CHANGE".
The economic crisis, the Iraq War and dissatisfaction with the Bush administration were the main reasons why Obama was elected. Americans were longing for change and responded enthusiastically to Obama's campaign slogan of "CHANGE".
Mandarin
经济危机、战争、对当前布什政府政策的不满，是奥巴马得以当选的主要原因，这些因素导致人心思变，对奥巴马提出的“变革”的竞选口号做出了积极响应。
經濟危機、戰爭、對當前布什政府政策的不滿，是奧巴馬得以當選的主要原因，這些因素導致人心思變，對奧巴馬提出的“變革”的競選口號做出了積極響應。
jīng jì wēi jī ， zhàn zhēng ， duì dāng qián bù shí zhèng fǔ zhèng cè de bù mǎn ， shì ào bā mǎ dé yǐ dāng xuǎn de zhǔ yào yuán yīn ， zhè xiē yīn sù dǎo zhì rén xīn sī biàn ， duì ào bā mǎ tí chū de “ biàn gé ” de jìng xuǎn kǒu hào zuò chū le jī jí xiǎng yìng ．
The economic crisis, the Iraq War and dissatisfaction with the Bush administration were the main reasons backing Obama's election victory. Americans were longing for change and responded enthusiastically to Obama's campaign slogan of "CHANGE".