万里长城修了多少年

表示可能时,什么时候用may ,may be,might,possible,probably,probably be要简练点的啊~这是情态动词~我只要求说是当他们都表示"可能"时的用法 描述鸡卵的形态结构. 沉底（F浮+T=G） 什么意思啊?我不理解~~帮帮忙 the sea of my heart was dancing yo be honest when I weat you 求翻译 求译：My heart is homesick today for the one sweet huor acroos the sea of time by stray birds.My heart is homesick today for the one sweet huor acroos the sea of time by stray birds.请翻译 maybe,perhaps,might有什么区别? Maybe, Perhaps, Might, Could,四者有什么区别请详细说明请说详细 maybe、perhaps、possibly的区别~最好有例句、 储能器在液压系统中的功用有哪些? 液压系统中的储能器有什么用 生物观察鸡卵的结构的过程是什么 英语翻译 You give me a tear,I just saw your heart all the ocean. 有谁能告诉哦“哲学”这2个字的来历和意义啊? all that i have got the used求歌词,及翻译 鸡卵中起保护作用的是____和_____,鸡卵中顿端有一个空腔是___ 英语翻译全句：All instruments used within the oral cavity should be sterile,have been decontaminated and sterilized or disinfected where sterilization is not possible. power,energy,force,strength四个词有什么区别 heart怎么解释 heart—shape和heart—shaped区别?解释下这两个词的不一样,顺便在详细介绍下“—"在英语中的用法. we heart it是什么 鸡卵的系带实质上是浓缩的（ 这是我们练习书上的一个题, My friend perfer dance music.(改为同义句) 鸡卵的气室有什么作用 Most of my friends like loud music that they can dance _____.A.for B.to C.by D.at请说明原因, 问一下歌词里面含有You'd better move,You'd better dance是哪首歌? Most of my friends like loud music .they can dance to it.（合并）Most of my friends like loud music ________they can_____ The more brave of heart may try the canoe races.Five or six men paddle each canoe across the partly-frozen St Lawrence River.The fiver is full of big pieces of ice,and if you were to fall in,you would freeze in less than two minutes. knowing you more after the heart of a nameless happy. the more difficult the more brave 有一首歌词有句more the Little Bit Of My Heart女的唱的歌四拍子歌,节奏清新,女的唱的,从第一句听着好像是这样的for you are that's where I wanna be tell the starsthat fit it all the waythat's far away call that my name m power,strength,energy的区别,希望能有例句.虽然网上答案有明确的分别，可是那只是常见的用法，字典上force，power，strength都有力量的意思。而在做题目的时候却总是容易混淆。比如有的时候force