緊坡地段 grade section: 坡段length of grade section: 坡段長(zhǎng)度section of unsufficient grade: 非緊坡地段be sufficient for: 對(duì)...足夠/充分be sufficient to: 足以下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯