Double-helical gear
[机] 人字正齿轮
🧩 词语组成解析
double
['dʌbl]
adj. 双的;两倍的;两面派的;双人用的;
vt. 使加倍;把…对折;重复;
vi. 加倍，加倍努力;快步走;
adv. 两倍地;双重地;
n. 两倍;双精度型;
doub二，双+le反复 → 反复两倍 → 翻倍
a. 螺旋状的\\n[电] 螺线
gear
[ɡɪr]
n. 齿轮;排挡;传动装置;衣服 ;
vi. 接上;调和;
vt. 使适应;装上齿轮;用齿轮连接;
🗣️ 情景例句
That's what I say.
我也会这么说。
I was born and raised in Beijing, and I am 25 years old.
我出生在北京，在那里长大，我今年25岁了。
and has achieved whatever work it was in him to do,
一切能做的都做了，