Know the extent of
知道…的程度
🧩 词语组成解析
know
[no]
v. 知道;了解;认识;确信;
n. 知情;
the
[ðə]
art. 指已提到的人（物）;指说话人与听者已知的人（物）;用于独一无二的事物前;与形容词最高级和序数词连用;
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];
🗣️ 情景例句
Don't lose your cool.
要沉住气。
Speak of angels and you will hear their wings.
说到曹操，曹操就到。
Late in the afternoon, the boys put up their tent in the middle of a field.
傍晚时分，孩子们在田野中央搭起了帐篷。