4周搞定2000+托福核心词
decayed = de(下面) + cay(落下) + ed(形容词) = 落下→向下掉→衰退的，腐烂的
decay = de(下面) + cay(落下) = 向下掉→衰退
ascend = a(向上) + scend(爬，攀) = 向上爬→攀登
ascending = a(向上) + scend(爬，攀) + ing(形容词) = 上升的
sustaining = sus(下，底) + tain(拿住) + ing(形容词) = 自立的
abideing = abide(停留) + ing(形容词) = 持久的
向下爬的→下降的；下行的
descending
常考释义
The revolutionaryaspect of this new timekeeper was neither the descending weight that providedits motive force nor the gear wheels (which had been around for at least 1,300 years) that transferred the power； it was the part called the escapement.
这种新型计时器的革命性特点既不是利用下降的重力提供动力，也不是用齿轮(已经存在了1300多年)传输能量，而是被称为擒纵器的部分。
来源于：剑雅8-Test1n. 递减；下行
Ingredients are listed in order of descending weight.
成分是按照重量递减的顺序列出的。
adj. 按降序排列
All the other ingredients, including water, have to be listed in descending order by weight.
所有其他原料，包括水在内，都需要根据重量依次降序排列。
List the points in descending order of importance.
将这几点按重要性降序排列。
v. 下来; 下去; 下降
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