maintenance，repair，overhaul 是什么意思

Question

如题所述

Answer 1

maintenance 维护; 维修; 维持，保持; 保养，保管;
[例句]The window had been replaced last week during routine maintenance.
上周例行维修的时候换了窗户。
repair 英[rɪˈpeə(r)] 美[rɪˈper]
vt. 修理; 纠正; 恢复; 弥补;
n. 修理; 修理工作; 维修状态; 经修理的东西;
[例句]Goldsmith has repaired the roof to ensure the house is wind-proof
戈德史密斯修理了屋顶，以确保房屋能够抗风。
overhaul 英[ˈəʊvəhɔ:l] 美[ˈoʊvərhɔ:l]
vt. 彻底检查; 翻修，检修; 赶上（他船）; 解松（船的）绳索;
n. 大修; 检查; 彻底检修; 详细检查;
[例句]They had ensured the plumbing was overhauled a year ago
他们曾保证水管一年前彻底检修过。