A safe direction means a direction in which a bullet cannot possibly strike anyone, taking into account possible ricochets and the fact that bullets can penetrate walls and ceilings.

“安全的方向”指在这个方向上弹头不会击中任何人，在确定这一点时要考虑到跳弹、考虑到弹头可能穿透墙壁和天花板。

youdao

Taking everything into consideration, I decided to bite the bullet and accept the tough job.

对所有因素作了全面考虑之后，我决定背水一战接受这件棘手的工作。

youdao

WJacksonPC When used as a bullet in a sling shot, they are very effective at taking down Storm Troopers on the Forest Moon of Endor.

FORBES: Non-Intended Uses For A Microsoft Touch Mouse