1.sensitivity n.灵敏度; 应激性; 敏感性; 过敏性
例句：Because of lack of sensitivity, the apparatus has already fallen into disuse.
由于灵敏度太低，这种仪器已经被淘汰了。
2.depressed adj.忧伤的,抑郁的,消沉的
例句：She was very sad, or rather, depressed.
她与其说是难过还不如说是沮丧。
3.cooperative adj.合作的
例句：The company has successfully created a positive, cooperative, and steady relation with its vendors.
这家公司成功的和合作商创建了积极稳固的合作关系。
4.intensive adj.加强的; 密集的; 彻底的
例句：Their export concentrates on labor intensive products.
他们的出口商品主要是劳动密集型商品。
5.nonsense n. 无意义的事, 荒谬言行, 荒唐
例句：She put a stop to his nonsense.
她制止了他的胡言乱语。
1.Some people thought babies were not able to learn things until they were five or six months old.
be able to能够
例句：They have to import wheat to be able to feed the country.
他们得靠进口小麦才够本国人民食用。
not until直到，才……引导条件句
例句：We were warned not to leave our shelter until tomorrow.
我们收到警告明天之前不要离开庇护所。
2.The researchers attempted to measure the sensitivity of the mothers.
attempt to企图
例句：The enemy attempted to effect a breakthrough but failed.
敌军企图突围，但未得逞。
3.These children also were less cooperative and had more problems dealing with other people.
相当于have difficulty doing sth的结构
have (no) difficulty(trouble) in doing
have (no) difficulty(trouble) in doing -- do sth. with (no) difficult
（毫不）费力做某事，做某事（没有困难），很（不）吃力
(1) They had some difficulty in explaining this to him.
他费了很大的劲，才向他说明了这件事。
(2) Do you have any difficulty in learning English?
你学英语很吃力吗？
(3) Everyone in the town knew him, so we had no trouble in finding his house.
城里人人都认识他，所以，我们毫不费劲地找到了他的家。