您要查找的是不是：
- He got a patent for this invention. 他獲得了這項發明的專利權。
- The patent runs out in three years time. 這項專利期限為3年。
- Did you take out a patent on your design? 你是否取得一項設計的專利?
- He was busy leveling the ground and laying turves. 他正忙於平整土地鋪草皮。
- I'd like a room on the upper level. 我想要樓上的房間。
- We need a mechanical digger to level the ground. 我們需要一台挖掘機來平整土地。
- I hope you'll be on the level with me. 我希望你對我坦率布公。
- She needs to win this point to level the score. 她要贏得這一分才能將比分扳平。
- Infringe a contract; infringe a patent. 違反一項合同; 侵犯專利權
- Keep a level head and phone the Fire Department. 保持冷靜，打電話給消防署。
- The patent office needs90 days to wait for any possible opposition. 專利局需要90天的時間等候任何可能產生的反對意見。
- A football field should be level. 足球場地應該平坦。
- The rising level of crime is a sign of the times. 犯罪率增高是這一時代的特徵。
- It was patent to everyone that he disliked the idea. 每個人都看得出來他不喜歡這個主意。
- Only when everything is ok will the patent be registered. 只有一切都順利，才能登記專利。
- I have told the whole story on the level. 我已經誠實地把整個事情經過講出來了。
- Find level ground for the picnic table. 找一處平坦的地面放野餐的餐桌。
- The first English patent for a typewriter was issued in1714. 英國第一台打字機專利證書是一七一四年頒發的。
- This mountain is 1,400 meters above sea level. 這座山海拔1,400米。
- He has a level head in emergencies. 他在危急關頭能鎮定自若。
