Letter of assurance
[经] 保证书
🧩 词语组成解析
letter
['lɛtɚ]
n. 信;证书，许可证;字母，文字;字面意义;
vt. 用字母标明;写字母于;加标题;
vi. 写印刷体字母;
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
assurance
[ə'ʃʊrəns]
n. 保证，担保;（人寿）保险;确信;厚脸皮，无耻;
as 一再 + sur 肯定 + ance 表名词，状态、 、行为 → n. 保证 ;把握 ;(人寿)保险
🗣️ 情景例句
His studies haven't been inproving lately.
他的学业最近没什么进步。
The percentage of the pay raise equals the increase in prices.
薪水的提高比率和物价的上升一致。
Well, you know I'm going to England next week for a holiday?
嗯，你知道下周我就要回英国度假吗？