1.Of course there are other forces to change the persity, just like the relationship between preyer and prey.
当然，还有其他一些改变多样性的力量，例如捕食和被捕食的关系。
2.Chapter Two is the introduction and evaluation of the origin of Child Study Movement, focusing on the study and thoughts of Wilhelm Preyer.
第二章介绍并评价了儿童研究的起源，主要是德国普莱尔的研究及思想。
3.Preyer should never depend upon the place or the people. It should depend only on you belief.
做祈祷从不应该有地点或场合之分，只有信仰之分。
4.If you believe in preyer, prey that people will find the strength to change .
相信祈祷的话，可祈祷求神赐人以改变的力量。