您要查找的是不是：
- Once installed, this heater operates automatically. 一旦安装好以后，这加热器就会自动地运行。
- This heater needs a new element. 这个加热器需要一组新电阻丝。
- The overhead costs are ridiculously expensive. 日常开支太高了。
- The heater in my car doesn't work properly. 我汽车里的暖气设备出了点毛病。
- 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。
- I can hear a plane flying overhead. 我听到一架飞机正从上空飞过。
- 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。
- You'll run up a huge gas bill if you leave the heater on. 热水器要是总开著，煤气费就很高了。
- 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。
- 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。
- 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
- Adopted quick heat and long life ceramic heater. 采用快速升温及长寿命陶瓷发热芯。
- A great congregation of birds flew overhead. 一大群鸟从头上飞过。
- The heater can give off much warmth. 加热器能散发出热能。
- A flock of gulls circled overhead as the boast sailed into the port. 船只驶入港口时，一群海鸥在船上方盘旋。
- An oxygen mask will come down from overhead in case of an emergency. 若发生紧急情况，头顶上会降下一只氧气面罩。
