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letdown ['letdaun] n
gen. 下降; 减低〔少〕; 排出; 松弛; 失望; 堆积
chem. 调漆
el. 下泄; 减少
skydive. 下滑从飞机开始进场到开始着陆
letdown: 28 phrases in 6 subjects
Aviation2
Chemistry2
Electronics16
Nuclear and fusion power6
Plastics1
Sports1