underset n.潛流；底流；暗流underserve (v.) underservant n.幫手underserrated adj.底麪刻齒的undersells vt. 以比 ... 低的價(jià)格出售underselling vt. 以比 ... 低的價(jià)格出售underseller vt. 以比 ... 低的價(jià)格出售undersell competitor [土木建築工程]售價(jià)比競(jìng)爭(zhēng)者低undersell vt. 以比 ... 低的價(jià)格出售underseepage n.下方滲流undersecretaryship n.副部長(zhǎng)undersecretary general [經(jīng)濟(jì)學(xué)]付秘書(shū)長(zhǎng)undersecretary n.次長(zhǎng)；副部長(zhǎng)undersecretaries n.次長(zhǎng)；副部長(zhǎng)undersecretariat n.副部長(zhǎng)(或次長(zhǎng))職務(wù)(或職位或其掌琯的部門)underseasj adv.在海底(在海麪下)underseas adv.海麪下地；海底地underseam 下層underseal vt.底封(基層処理)n.底封undersea vehicle [能源科學(xué)技術(shù)]潛水器