一只鸟在高高的树枝上筑了巢。

A bird built its nest on a high ___branch.

孩子小心翼翼地爬上了一根粗壮的树枝。

The child carefully climbed onto a thick ___branch.

细树枝在微风中轻轻摇曳。

The thin ___branch swayed gently in the breeze.