短语学习：apple构成的两个常见短语   一些英语短语都有它的典故或者出处，比如一些有水果名词构成的短语就是如此，今天只讲两个常见的由apple构成的短语。 1.in apple-pie order指“井然有序， 有条不紊”。比如： Everything was in apple-pie order.所有的东西都整整齐齐。Everything was in apple-pie order.所有的东西都整整齐齐。 His tools are always in apple-pie order.他的工具总是放得井井有条。Rita likes to keep everything in apple-pie order.丽塔喜欢把一切都弄得井井有条。My mother always puts everything in apple-pie order.我母亲总是把所有东西都收拾得整整齐齐。 The traffic in this city is arranged in apple-pie order.这个城市的交通管理井井有条。 2.短语apple of discord多指“纷争的根源，祸根”。比如： Everyone said I was an apple of discord.他们都说我是个祸根。Do I sense an apple of discord in with you two?你问我有么有感觉出你们两人之间的不和，是吗？ This problem seems to be an apple of discord between the Russia and the USA.这个问题似乎成了俄罗斯和美国之间的不合之源。