Sentence:  Too many husbands , Dr. Schillinger continues , worry about `` how <WSD>well</WSD> they 're doing '' , and fear that their success depends on some trick or technique of sexual play . 
Meaning of the word marked with <WSD> tags:  (often used as a combining form) in a good or proper or satisfactory manner or to a high standard (`good' is a nonstandard dialectal variant for `well')