1. In fact, the children begin to sense that a parent's unlimited generosity is not right.
    事实上，孩子们已经开始感到父母的无限制的慷慨大方是不对的。

2. I begin to cry quietly.
    我开始轻声哭泣。

3. From the Skeppsbron and surrounding islands the people watched this thing of beauty begin to spread her sails and catch the wind.
    人们从斯开波斯布朗和周围的岛屿前来观着这艘美丽的战船扬帆起航，乘风前进。

4. Fatigue and poor performance may begin to appear in the second stage of deficiency, when not enough iron is present to form the molecules of blood protein that transport oxygen to the working muscles.
    到了缺铁的第二阶段，就会出现疲倦和力不从心，此时体内已没有足够的铁来形成血蛋白分子，将氧输至运动着的肌肉。