drill

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drill用作名詞的基本意思是“鉆頭,鉆床”,指的是一種用來鉆孔的工具或機器,是可數(shù)名詞。
drill還可作“操練,訓練”解,在表示具體的“操練”時,用作可數(shù)名詞。反復多次的“操練”可用復數(shù)形式; 在表示抽象意義的“操練”時,多用作不可數(shù)名詞。
drill引申還可作“規(guī)定程序; 正確方法; 常規(guī)”解,主要用于英式英語中。

drill可作“鉆孔”解,指用裝有尖銳旋轉工具的器械在堅硬的物質(zhì)上鉆孔,此時既可用作及物動詞也可用作不及物動詞。
drill常用的意思是“操練,訓練”,指嚴格地、反復地、系統(tǒng)地訓練、操練等,有時特指軍事操練,即“訓練士兵的一系列動作”或“按照擬訂模式重復練習某一學習內(nèi)容”,強調(diào)養(yǎng)成某種身體上的或思想上的習慣,就像用鉆鉆得很深一樣。
drill作“操作”“訓練”解時可用作不及物動詞,也可用作及物動詞,可接名詞或代詞作賓語,其賓語用來表示訓練的對象,而訓練的內(nèi)容有時用介詞in引出。
drill常用于被動結構。

(TOOL) a tool or machine that makes holes
(REGULAR ACTIVITY) an activity that practises a particular skill and often involves repeating the same thing several times, especially a military exercise intended to train soldiers
(MAKE HOLE) to make a hole in something using a special tool
(PRACTISE) to practise something, especially military exercises, or to make someone do this

A drill is a tool or machine that you use for making holes.
A drill is a routine exercise or activity, in which people practise what they should do in dangerous situations.
When you drill into something or drill a hole in something, you make a hole in it using a drill.
When people drill for oil or water, they search for it by drilling deep holes in the ground or in the bottom of the sea.
A drill is repeated training for a group of people, especially soldiers, so that they can do something quickly and efficiently.
to teach by rigorous exercises or training
a machine for planting seeds in rows or depositing fertilizer
to plant (seeds) by means of a drill
a hard-wearing twill-weave cotton cloth, used for uniforms, etc
an Old World monkey, Mandrillus leucophaeus, of W Africa, related to the mandrill but smaller and less brightly coloured