青年中文drop hole的意思
drop hole中文翻譯：
下降孔，下降孔
drop───n.滴；落下；空投；微量；滴劑；v.推動；幫助；宣揚；下降；終止
hole───vt.鑿洞；vi.鑿洞，穿孔；（高爾夫球等）進洞；n.(Hole)人名；(瑞典、挪)霍勒；(英)霍爾；n.洞，孔；洞穴，穴；突破口
drilling hole───鉆孔
through hole───透眼，透孔，通孔
castellation hole───蜂窩孔
he hole───he洞
weepers hole───泄水孔
jackson hole───杰克遜霍爾（地名）
sweet drop───甜點
Then maybe we should drop it down a deep hole, or destroy it.───那么我們應當挖個深坑埋了它，或者毀掉它。
When the library is closed, you can drop books in through the special hole in the door.───圖書館關門后，你可以把書從門上專設的小口中投進去。
Scientists use "hole" as a metaphor for the area in which ozone concentrations drop below the historical threshold of 220 Dobson Units.───科學家們用“空洞”一詞表示臭氧濃度低于220個多布森單位（多布森單位是用來度量大氣中臭氧柱尺度的單位。
a. Number and Siting of Latrines. As a rule, at least 1 latrine (drop hole) should be provided for every 20 people.───a廁所的數量和安裝地點：一般情況下，每20個人至少應有一個廁所或排泄口。