trunk

/trəŋk/

the main stem of a tree; usually covered with bark; the bole is usually the part that is commercially useful for lumber

中文释义：树干；躯干；大行李箱

The old oak tree had a massive trunk that required three people to wrap their arms around.

那棵老橡树的树干非常粗壮，需要三个人才能合抱。

Elephants use their trunks to pick up food and spray water over their bodies.

大象用鼻子卷起食物，并向身上喷水。