a tangle of branches的用法和样例：
- There is a tangle of ropes on the deck.
- Their thoughts are a tangle of unexamined impulses.
- A squad of six Elites was ahead, hunkered behind a tangle of ducts.
- John was sitting on the floor in a tangle of blankets.
- The moon ran with him, slipping through a tangle of bare branches overhead, across the starry sky.