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
We have brought this transaction to a successful conclusion.
我们已成功地达成了协议。
Let us imagine a hypothetical case where we disagree.
让我们假设一个我们不同意的状况。
He says the Chinese people are very friendly.
他说中国人都很热情。