名词:weakener 动词过去式:weakened 过去分词:weakened 现在分词:weakening 第三人称单数:weakens
1 [I, Tn] (cause sb/sth to) become weak or weaker （使某人[某事物]）变弱
*They watched her gradually weaken as the disease progressed. 他们观察到她随着病情变化身体也渐渐衰弱下去.
* The dollar has weakened in international currency trading. 美元在国际货币交易中已趋疲软.
* Hunger and disease had weakened his constitution. 他饥饿与疾病交加, 体质已削弱.
2 [I] become less determined or certain about sth; waver （对某事物的决心或肯定程度）减弱, 动摇, 犹豫
*They have not yet agreed to our requests but they are clearly weakening. 他们还没有同意我们的要求, 但态度已明显软化.
v [I and T]
to make someone or something less powerful or less important, or to become less powerful
≠ strengthen Over the last two years the president's position has weakened. Changes in policy have weakened the power of the trade unions. The absence of this witness has weakened the case against the accused.
to make someone lose their physical strength, or to become physically weak Julia was weakened by her long illness.
to make someone less determined, or to become less determined Such policies weaken the resolve of potential troublemakers. When she begged him to let her stay, he weakened.
to make a building, structure etc less strong, or to become less strong The earthquake in Cairo weakened a number of structures.
if a particular country's money or a company's share
prices weaken, or if they are weakened, their value is reducedweaken against The pound has weakened against the dollar.
1. By keeping their pupils working unnecessarily long at some little part of the subject, they often weaken their interest in learning the language. 让学生们在一些细小的方面花去过多的时间反复练习，这往往会减弱他们学习语言的兴趣。
2. The king tried to weaken the power of the clergy. 国王试图削弱教会的权力。
3. The study's ultimate aim, he says, is to "weaken conventional notions of race" that cause racial prejudice. 他说研究的最终目的是"削弱"造成种族偏见的"传统的种族观念"。
4. Parents sometimes weaken the process by taking the forms and filling in false and wishful data about their children's habits, especially on the smoking question. 有时家长会拿走表格，填入不真实的、一厢情愿的数据来反映他们孩子的习惯，特别是在吸烟问题上，这就削弱了这种做法的作用。