Grandfather pointed to a block of wood.

爷爷指着一块木头。

youdao

The butcher cut up the meat on a block of wood.

屠夫在一整块木头上切肉。

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I carved this jewelry box from a block of wood.

我把一块木头刻成这个珠宝盒。

youdao

The first computer mouse was a carved block of wood with two metal wheels.

VOA: special.2010.08.01

So Bush sheathed it in a block of wood shaved into the shape of his own calf.

FORBES: Magazine Article

During our steep cliffside descent from Montespluga, Italy, a block of wood was slipped underneath the shoe to increase friction even further.

FORBES: Antique Roadshow

That means that an object under the stack - in the team's experiments, a block of wood about 10cm long - would not "hear" the sound, and any attempts to locate the object using sound waves would not find it.

BBC: Acoustic 'cloaking device' shields objects from sound