阈限性是两个阶段之间的过渡状态,个体不再处于前一个状态,但尚未进入下一个状态。
一个好老师必须能够设身处地为那些觉得学习困难的人着想。
Technology in forestry should enhance nature's processes, not replace them.
The investor who is willing to take a loss is the one who will be successful in the long run.
"I was unconditionally and irrevocably in love with him."