🧩 词语组成解析
national
['næʃnəl]
adj. 国家的;国有的;国民的;民族主义的;
n. [常用复数]全国性比赛;某国国民;全国性报刊;（机构等的）全国总部;
nat出生的+ion名词后缀+al...的 →出生地的 →国家的，民族的
rifle
['raɪfl]
n. 步枪;来福枪;
vt.& vi. 快速搜寻;匆忙翻找 ;偷窃;盗取;
association
[ə,soʃɪ'eʃən]
n. 协会，社团;联合，联系;联想;
as加强+soci社会+at(e)使...+ion表名词 →associate结成社会=联合+ion表名词 → 联合
🗣️ 情景例句
We have closely connected with firms in USA.
我们同美国有良好的业务关系。
Does it make any difference to you whether we have our lesson at two o'clock or at three o'clock?
我们在两点上课还是在三点上课，你觉得有关系吗？
A few days later, she sent a boy to the workman to ask him if his name was Hans Bussman.
几天后，她派了一个男孩去问那人是否叫汉斯。巴斯曼。