shuttling
n. 往复运动；梭动
v. 使穿梭般往复移动（shuttle 的 ing 形式）
例句
Her childhood was spent shuttling between her mother and father.
她的童年是在父母之间穿梭往来中度过的。
《牛津词典》
The rising volume of trade—more goods and services shuttling in and out of the United States—is good news for many sectors.
不断增长的贸易量——更多的商品和服务进出美国——对许多行业来说都是好消息。
He wrote prolifically both in Ireland and England, nearly constantly shuttling from one to the other.
他几乎不断穿梭于爱尔兰和英国之间，并在两地写出大量作品。
