🧩 词语组成解析
doctor
['dɑktɚ]
n. 医生，大夫;博士;神学家;医疗设备;
vt.& vi. 医疗，行医;
vt. 修理，装配;假造;搀杂;修改，修饰;
doct教+or表名词，人→教的人→有学问的人→ 博士，医生
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];
letters
[[letəz]]
n. 字母；书信；读者投书栏（letter的复数）
🗣️ 情景例句
A small one will do. What is your best rate?
小型车就可以了。你们最优惠的价格是多少？
It is an equal failing to trust everybody, and to trust nobody.
信任一切与不信任任何人，同样是弱点。
They were expecting their sixth child and were faced with even more pressing economic problems.
第6个孩子即将问世，他们面临着更为严峻的经济问题。