We always reject zero as an eigenfunction on the ground of physics.根据物理上的理由,我们总是剔除把零作为本征函数.The stable field problem is discussed in rectangle area with method , which are eigenfunction and superpositionle.文章结合叠加原理,应用本征函数...
情绪低落的时候，她们就疯狂地猛吃巧克力和糖果。When depressed, they dramatically overindulge in chocolate and sweets.乔治疯狂地挣扎，不断在水面上浮浮沉沉。George struggled wildly, going under and resurfacing at regular intervals.我不用疯狂地节食也能减轻几磅。I can lose a few po...
“ 信里压根儿没提寄钱, ” 听得出他心里生疑." There was no word about the money in the letter, " he said in a queer voice.请放心, 我们可以替您办好这些手续,通过银行寄钱有三种办法.Please take it easy. There are three ways to transfer money through banks.我央求妈妈让我寄钱去买贺卡....
Rich, intoxicating autumn! What scene to gladden people's hearts!啊, 多么使人心醉的绚丽灿烂的秋色, 多么令人兴奋的欣欣向荣的景象 啊 !Don't sadden your friends and gladden your enemies.勿使亲者痛仇者快。Do not sadden your friends and gladden your enem...
她知道我周末想开船出去试一下。She knew I wanted to try the boat out at the weekend.船员在开船约两天后发现了那名偷乘者。The crew discovered the stowaway about two days into their voyage.你去单雇一只汽油船, 一点钟以前就要开船!You can hire a motorboat, and you leave before ...