这是什么意思，方程的线性关系，是解决问题的十分漂亮的方法。
What does this mean? Linearity of solutions, the elegant way of saying it is superposition holds.
我想您肯定知道hypochondriac是什么意思。这个词指一类人，他们想象自己身上有一堆大大小小的病症，而实际上他们却十分健康。
I'm sure you know that a hypochondriac is someone who imagines they have a multitude of medical problems when in fact they are perfectly healthy.
我想您肯定知道hypochondriac是什么意思。这个词指一类人，他们想象自己身上有一堆大大小小的病症，而实际上他们却十分健康。
I'm sure you know that a hypochondriac is someone who imagines they have a multitude of medical problems when in fact they are perfectly healthy.
应用推荐