Unthreaded hole
[化] 光孔
🧩 词语组成解析
没有螺纹的
hole
[hol]
n. 洞，孔;洞穴，穴;缺陷;<口>绝境;
vt.& vi. （在…上）打洞或穿孔;
vi. 凿洞;（高尔夫球等）进洞;
🗣️ 情景例句
I didn't have that when Richard and Susan were born.
在Richard和Susan出生时我可没有人帮忙。
For a few, scholarships were sources of support.
有少数人，奖学金是他们接受教育的学费来源。
He did not look up from his desk when I entered.
我进去的时候，他连头也没抬。