You should curl up (蜷缩) into a ball and cover your head and neck with your hands.

你应该蜷缩起来，用手护住头和脖子。

youdao

The child was asked to go to the corner of the room and to cover his or her eyes before coming back and guessing which of two large boxes contained a hidden ball.

这个小孩会被要求走到房间的一角，遮住他或她的眼睛，然后回来猜一下两个大盒子中的哪个包含了一个隐藏的球。

youdao

Of course, you can knock the cover off the ball in practice.

当然，你可以坚持猛练，直到把球皮磨掉。

youdao

Evans struck with his fourth ball of the day to have home captain Alex Gidman also held by Hall at slip and later had Chris Taylor caught by Stephen Peters at extra cover the ball after being hooked for six.

BBC: Northants wrap up win over Gloucestershire

Defaulted loans in particular ripped the cover off the ball, with an 8.42% gain.

FORBES: S&P/LSTA Index Loan Index Hits All-Time High With A 2.18% Gain In Jan.

The high yield universe excluding telecoms did not exactly knock the cover off the ball.

FORBES: Wall Street Is Getting Better At Creating 'Junk'