1.   A mourning cloak butterfly flew up from a tree trunk in the sunshine where it was basking.

2.   Although they do not need it to fight they are usually armed with a big club made from a tree trunk.

3.   Ben carved his name in the tree trunk, using the point of his knife.

4.   Gao Yang screamed, too, and banged his head against the tree trunk.

5.   He left his bicycle leaning against a tree trunk.

6.   Hiding in the swamp, Sammler lay under a tree trunk, in the mud, under scum.

7.   His upper arms were like tree trunks.

8.   In addition, the tree trunks are ringed with bright green growths at their bases.

9.   My father was a big man, with legs like tree trunks.