Bec
abbr. 雇员伤亡赔偿局（Bureau of Employees' Compensation）；商务英语证书（Business English Certificate）
🗣️ 情景例句
We tested it last week on twelve- to fifteen-year-olds,
我们上一周曾在十二岁至十五岁的孩子中试过这项游戏，
Would you mind getting together sometime?
你可以找个时间大家一起聚聚吗？
Such creatures have rarely been seen alive by man as they live at a depth of six hundred feet.
人们很少能看到活着的这类动物，因为它们生活在600英尺深的水下。