您要查找的是不是：
- Once installed, this heater operates automatically. 一旦安裝好以後，這加熱器就會自動地運行。
- This heater needs a new element. 這個加熱器需要一組新電阻絲。
- The overhead costs are ridiculously expensive. 日常開支太高了。
- The heater in my car doesn't work properly. 我汽車裡的暖氣設備出了點毛病。
- Seagulls were circling overhead. 海鷗在頭頂山盤旋。
- Her overhead smash went out of the court. 她的高手扣球打出了場外。
- A flock of wild geese flew overhead. 一群野鵝從頭頂飛過。
- The airplane was immediately overhead. 飛機幾乎就在正上方。
- I can hear a plane flying overhead. 我聽到一架飛機正從上空飛過。
- The city has decided to do away with overhead wires. 那個城市決定取消架在空中的電線指將把電線埋入地下。
- You'll run up a huge gas bill if you leave the heater on. 熱水器要是總開著，煤氣費就很高了。
- Reducing overhead take priority over increasing turnover. 與增加營業額相比，應優先考慮降低間接費用。
- Their office is in central Beijing, so their overhead is very high. 他們的辦事處設在北京市中心，所以他們的日常開支很大。
- The trolley bus picks up current from an overhead wire. 無軌電車的電能是通過架空線供給的。
- Situated at the vertex or highest point; directly overhead. 頂點的在頂點或者最高點的; 頭的正上方的
- Adopted quick heat and long life ceramic heater. 採用快速升溫及長壽命陶瓷發熱芯。
- A great congregation of birds flew overhead. 一大群鳥從頭上飛過。
- The heater can give off much warmth. 加熱器能散發出熱能。
- A flock of gulls circled overhead as the boast sailed into the port. 船隻駛入港口時，一群海鷗在船上方盤旋。
- An oxygen mask will come down from overhead in case of an emergency. 若發生緊急情況，頭頂上會降下一隻氧氣面罩。
