vi.使分叉；使成树状
They sat in the arbor and chatted over tea. 他们坐在凉亭里，边喝茶边聊天。
A ceiling of leaves over the arbor. 凉亭上面的树叶顶篷
Let's have a rest under the arbor. 咱们在凉亭下休憩一下吧。
You may have heard of Arbor Day at school. 你可能在学校里听过植树节。
The arbor of this machine was out of order. 这台机器的心轴坏掉了。
Let us have a rest under the arbor. 咱们在凉亭下休憩一下吧。
vi.使分叉；使成树状
vi.使分叉；使成树状
