1 . 下坡
2. downpipedowngrade下坡downpour 暴雨
2 . 降级
doubling-up allowance 兼署理较高职级津贴downgrade降级;解密[机密文件]downpayment loan [Home Financing Scheme] 首期贷款[居所资助.
3 . 水平下弯度
downfall 坠落崩坏downgrade水平下弯度downhand weld 俯焊
4 . 解密
doubling-up allowance 兼署理较高职级津贴downgrade降级;解密[机密文件]downpayment loan [Home Financing Scheme] 首期贷款[居所资助.