O40. overwhelm，overwhelming-O41. owing

overwhelm，overwhelming

构词：over（笼罩）＋whelm（覆盖，w-m：上下颠倒）

笼罩般覆盖 v. 淹没；压垮；受不了

相关：helmet，heal，health，hell；cellar，conceal，ceiling

搭配：overwhelmed by feelings / landscape / enemy / difficulty

overwhleming majority / desire / worry / stress / loneliness / task

近义：flood，bury；overcome，overpower，overthrow，conquer

owing

构词：owe（own，“拥有”的反面）＋ing（adj.）

“欠缺” adj. 应给的；应得的 

相关：owe，own，ought

搭配：owe a debt / money / someone /an explanation；owing to

近义：be in debt，be obliged to，overdue

+因： due to，thanks to，ascribe to，attribute to；stem from，derive from，arise from，result from；root in

+果：lead to，contribute to，give rise to，bring about，result in 

考点：因果关系，近义替换