Library of lessons
[计] 课程程序库
🧩 词语组成解析
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];
n. 功课( lesson的名词复数 ); 课程; 教训; 一堂课
🗣️ 情景例句
For example, did you know that 1 in 4 teenagers has tried marijuana?
比如，你是否知道4个青少年中就有1位曾经吸过大麻？
That's very nice of you. I guess I could use some help.
谢谢你的好意。我想我可能要一点帮助。
Size eight.
8号的。