您要查找的是不是：
- You may want to consider dropping indexes that incur maintenance overhead, but are not used for queries, or are only infrequently used for queries. 您可能要删除引发维护开销但不用于查询或只是偶尔用于查询的索引。
- Since the number of intersections is smaller than the number of vehicles, we believe this mechanism can reduce the maintenance overhead and improve the delivery delay. 由于路口的数量少于车辆的数量，所以我们相信此机制能有效的降低维持广播树的负担，并改善传输延迟。
- The overhead costs are ridiculously expensive. 日常开支太高了。
- The machinery requires constant maintenance. 这些机器需要经常保养维修。
- Seagulls were circling overhead. 海鸥在头顶山盘旋。
- Her overhead smash went out of the court. 她的高手扣球打出了场外。
- A flock of wild geese flew overhead. 一群野鹅从头顶飞过。
- The airplane was immediately overhead. 飞机几乎就在正上方。
- Maintenance of PC is in my element. 我对电脑的维修保养很在行。
- I can hear a plane flying overhead. 我听到一架飞机正从上空飞过。
- He's taking classes in car maintenance. 他正在上汽车维修课。
- The city has decided to do away with overhead wires. 那个城市决定取消架在空中的电线指将把电线埋入地下。
- Who is responsible for the building's maintenance? 谁负责这座大楼的保养事宜?
- Has he enrolled in the car maintenance class this year? 他今年报名参加汽车维修班的学习了吗？
- Reducing overhead take priority over increasing turnover. 与增加营业额相比，应优先考虑降低间接费用。
- The petitioner ask for a variation in her maintenance order. 上诉人要求对她生活费的命令的条件进行变更。
- Their office is in central Beijing, so their overhead is very high. 他们的办事处设在北京市中心，所以他们的日常开支很大。
- The trolley bus picks up current from an overhead wire. 无轨电车的电能是通过架空线供给的。
- A lot of the cost of maintenance go into renew brake. 很多的维修费用都花在了更换煞车方面。
- Situated at the vertex or highest point; directly overhead. 顶点的在顶点或者最高点的; 头的正上方的
