1、My classmate Li Qiang and I go to school by bys every day.

2、That it was like the Earth’s was confirmed in 2008 on one of Messenger’s fly-bys.

3、Many salesmen stood by the roadside to hand out the leaflets for their products to passers-bys.

4、Such fly-bys give spacecraft a whip-crack of extra speed【3】 on their tour through the solar system.

5、On Christmas Eve she returns home, and in her hand is beautiful bos containing a gold watch chain which she purchased bys elling her hair.

6、As it has gained more and more features and increased stability, it's become a viable alternative to the old stand-bys.

7、This field was discovered by Mariner 10. That it was like the Earth's was confirmed in 2008 on one of Messenger's fly-bys.

8、Mariner 10 managed to map about 45% of Mercury's surface as it sped past, but Messenger's three fly-bys have filled in the gaps, and there is now a virtually complete map of the place.

9、Without its six fly-bys—which used the gravitational fields of the planets involved to counter that effect—Messenger could not have slowed sufficiently to allow it to drop into its intended orbit.

10、The windblades come to existence by cutting the bamboos into halves. The ends of the bamboos are cut angularly so the lamp lights downwards to the passer-bys and its motion can be seen from afar.