田里的玉米已经长到齐胸高了。

The corn in the field is now ___chest-high.

在洪水区，水深及胸，我们不得不游泳前进。

In the flooded area, the ___chest-high water forced us to swim forward.

洪水过后，院子里的淤泥已经齐胸高了。

After the flood, the mud in the yard was ___chest-high.