phrasal verbsput sth behind you把…置之脑后;指忘掉不愉快的事或经历unpleasant 英 [ʌnˈpleznt] 美 [ʌnˈpleznt]adj.令人不快的;不舒服的;不和蔼的;不客气的;不礼貌的派生词： unpleasantly adv.
买单1.惯用口语句子：Could I have the check, please?= Can I have the bill, please?= Would you please bring me the check?请给我账单，好吗？check n.
WelcomHi [haɪ]嘿，喂，你好I [aɪ]我Be[biː] (am [æm], is [ɪz], are[ɑː])是what [wɒt] 什么your [jɔː] 你的;你们的name [neɪm] 名字hello [həˈləʊ]喂，哈啰，你好my [maɪ]我的go
Also， pediatricians discourage screen exposure for children under 2，另外，儿科医生不建议2岁以下宝宝看屏幕，and suggest older children limit the amount of total entertainment screen time to less than 2 hours per day .1-2小时，已经属于极限值了，对于幼儿园小朋友来说，1小时就属于非常多了。
文|AndyMao，来自知乎问：如何理解期权 Sell Put？答：sell put是我的最爱的策略。很powerful。我来说说对它的运用和策略的看法吧表面上看来，put selling的理论收益一定，风险很大，不划算。但这只是理论上，难道你看着合约价格下跌不止损？
