"they went west as pioneers with only the possessions they could carry with them"
"She pioneered a graduate program for women students"
"This South African surgeon pioneered heart transplants"
"pioneer space"
来自柯林斯例句
来自《权威词典》
来自《现代汉英综合大词典》
来自《现代汉英综合大词典》
来自《简明英汉词典》