Let me disappointedly is 让我失望的是
I feared lets them disappointedly 我怕让他们失望
Therefore lets him very disappointedly 因此让他很失望 ; 因此让他非常令人失望
look disappointedly at his son 失望地望着他儿子
I think a little disappointedly 我觉得有点失望
"she left the gambling table disappointedly"
以上来源于: WordNet
None of these efforts worked, and the people went home disappointedly.
这些努力都没有奏效,人们失望地回家。
"So neither one of you found the answer," Martin said disappointedly.
“那么你们谁都没有得到答案,”马丁很失望地说。
"And your husband lets you do this?" Mom mused somewhat disappointedly.
“那你老公不反对你这么做吗?”老妈谨慎地问道,表情多少有些失望。
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