例句與造句

1. From this and from their act, they made enough money to be able to afford to tour the variety circuit flying in their own aeroplane and to stay in the best hotels.
2. Planning guidance on aircraft noise advises that " in some circumstances the public perceive general aircraft noise levels as more disturbing than similar levels around major airports . " This is a result of the tonal characteristics of light aircraft engines and the activities they are engaged in, including : repetitive circuit flying at low-altitude near an aerodrome, during which aircraft are audible for long periods; slow climbing aircraft engaged in parachute drop or glider tug activities concentrated around the drop zone or aerodrome, also audible for long periods; erratic and repetitive engine noise from aircraft engaged in aerobatics; and piston-engines on full power in areas of low background noise, leading to the perception that such noise is more intrusive.
3. It's difficult to find circuit flying in a sentence. 用circuit flying造句挺難的