酷兔词典首页
1. Though it is imperceptible at first, it will finally become so steep that we can live no longer,
    虽然在开始时觉察不到,但是终将变得如此急骤,

2. Though imperceptible at first, will finally become so steep that we can live no longer,
    虽然这个过程起初难以觉察,