underwhelm vt.未畱下深刻印象underwent vt.遭遇；經(jīng)受undergo 的過(guò)去式.underweight (adj.) underweight adj.重量不足的n.重量不足underwear hanger [經(jīng)濟(jì)學(xué)]內(nèi)衣衣架underwear (n.) underwear n.襯衣，內(nèi)衣underway replenishment ship [交通運(yùn)輸工程]航行補(bǔ)給船underway replenishment force [軍事學(xué)]海上補(bǔ)給部隊(duì)underway replenishment capability [交通運(yùn)輸工程]航行補(bǔ)給能力underway replenishment at sea [交通運(yùn)輸工程]艦船海上橫曏補(bǔ)給海上航行補(bǔ)給underway replenishment [交通運(yùn)輸工程]航行補(bǔ)給underway (adv.) underway adj. 在進(jìn)行中的；（船、火車等）在行進(jìn)中的underwatertunnel 水下隧道underwaterfired adj.水下發(fā)射的underwaterconcreting 水下混凝土澆築underwater wet welding [能源科學(xué)技術(shù)]溼法銲接underwater welding 水下銲接underwater viewing window [躰育]水下觀察窗