Train-sets
(train-set 的复数) 模型铁路（玩具）；成套火车
🧩 词语组成解析
n. 集合, 设置（set的复数）
🗣️ 情景例句
Could you please give me a receipt?
给我一张发票。
May I ask you how old you are?
我能问你多大了吗？
recorded for the slumbering scientist the strength of a shock that was too weak to waken him,and the direction from which it came.
由于地震太弱而未惊醒科学家时，就为科学家记录下了地震的强度和地震方向。