热带的资源并非不足; 而是受栽培的限制.The resources of the tropics are not inadequate; they are culture - bound.四面八方都是树木成林的山峰, 呈现出热带的青葱草木.On every side were wooded mountain tops, green with tropical verdure.这植物带有热带的性质.The vegetation parta...
Real change can not be constrained by the rules, hunches, or imagined.真正的变化是无法被规则制约 、 预感或想象之中.Changes in temperature occur slowly and are constrained within relatively tight bounds.温度变化缓慢,而且局限在相对较小的范围内。The iteration of g...