long wave 長(zhǎng)波（段）。long vehicle tunnel [交通運(yùn)輸工程]車行長(zhǎng)隧道long vehicle sharp turn 長(zhǎng)車急彎long vacation 大學(xué)暑假；法院夏季休庭long underwear long trunk call 長(zhǎng)途呼叫long trousers long tongue 長(zhǎng)舌；饒舌；長(zhǎng)舌形鐵指long ton n. 英噸，長(zhǎng)噸long toll call 長(zhǎng)途呼叫long timer long time notes payable [經(jīng)濟(jì)學(xué)]應(yīng)付長(zhǎng)期信用票long time delay 長(zhǎng)延時(shí)long time before 很久以前 在……前的很長(zhǎng)一段時(shí)間long time ago 很久以前long time adj. 長(zhǎng)期的（持久的）；長(zhǎng)時(shí)間；好久好久long thread sleeve [交通運(yùn)輸工程]長(zhǎng)螺紋套筒long term viral persistence [醫(yī)藥科學(xué)]長(zhǎng)期病毒持續(xù)存在long term usage 長(zhǎng)期使用long term running test [電子、通信與自動(dòng)控制技術(shù)]長(zhǎng)期運(yùn)轉(zhuǎn)試驗(yàn)