Led of screw
[机] 螺纹导程
🧩 词语组成解析
led
[[led]]
lead的过去式和过去分词\\n[计] 发光二极管
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];
screw
[skru]
n. 螺丝钉;螺旋桨，螺旋状物;（螺丝的）转，扭;吝啬鬼;
vt. 用螺丝拧紧;扭曲（某人的面孔）;〈俚〉占便宜，诈骗;
vi. 扭转，扭歪;旋紧;（和某人）性交;
🗣️ 情景例句
The rainy season lasted until July.
雨季一直持续到7月。
Sleeping is the best cure for waking troubles.
睡眠是良药，专治醒时愁。
What was the population of the more developed countries in 1950?
1950年较发达国家的人口是多少？