trunk ·noun (TREE)
Definition: the thick stem of a tree that the branches grow from Level: B2
那棵老橡树粗大的树干为整个花园提供了荫凉。
The massive ___trunk of the old oak tree provided shade for the entire garden.
一只松鼠顺着树木粗糙的树干径直跑了上去。
A squirrel ran straight up the rough bark of the tree's ___trunk.
森林里长满了参天大树，它们的树干像柱子一样伸向天空。
The forest was filled with towering trees, their ___trunks rising like pillars towards the sky.