Hole saw
[医] 钻锯, 环钻
🏥 医学释义
钻孔锯，环锯
🧩 词语组成解析
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;
saw
[sɔ]
n. 锯;谚语，格言;
vt.& vi. 往复移动;锯成;用锯;拉锯;
v. 看见（ see的过去式）;观看;领会;考虑;
🗣️ 情景例句
Why, I didn't know that your grandfather was born in Germany.
你看 我竟然不知道您的爷爷出生在德国。
A tree is known by its fruit.
观其行而知其人。
Collecting, by occupying spare time so constructively, makes a person contented, with no time for boredom.
收藏活动通过富有建设性地利用业余时间使人感到心满意足，不再有无聊之日。