All day long he flies back and forth from his branch to the feeder.
这一整天，他在喂料器和枝桠之间来来回回。
2
The trees have ample room to expand on the water side, and each sends forth its most vigorous branch in that direction.
树木都有充分的余地在水边扩展，每一棵树都向了这个方向伸出最强有力的桠枝。
3
The principles in managing bifurcation lesions include protection of side branch, optimal stent implantation strategies and final kissing balloon, and so forth.