非緊坡地段 insufficient section: 不足部分grade section: 坡段length of grade section: 坡段長(zhǎng)度section of unsufficient grade: 非緊坡地段insufficient: adj. 不夠的,不足的,不充分的;不適當(dāng)?shù)摹?adv. -ly 下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯