level

• n. 水平；標準；水平麵
• adj. 水平的；平坦的；同高的
• vi. 瞄準；拉平；變得平坦
• vt. 使同等；對準；弄平
• n. (Level)人名；(法)勒韋爾

來自拉丁語libella,平衡，秤，詞源同Libra,deliberate.引申詞義水平，層級。

level

level: [14] The Latin word for a ‘balance’ or ‘scales’ was libra (it has given English Libra the zodiacal sign [14] and also lies behind many terms for units of measurement, including litre and the abbreviation lb for ‘pound’). Its diminutive form was lībella, which denoted an ‘instrument for checking horizontality’, and hence a ‘horizontal line’. It passed into Old French as livel (which in modern French has become niveau ‘level’), and English took it over as level.
=> litre

level (n.)

mid-14c., "tool to indicate a horizontal line," from Old French livel "a level" (13c.), ultimately from Latin libella "a balance, level," diminutive of libra "balance, scale, unit of weight," from PIE *lithra. Cognate Spanish nivel, Modern French niveau are from the same source but altered by dissimilation. Meaning "horizontality" is from c. 1400. Meaning "position as marked by a horizontal line" is from 1530s. Phrase on the level "fair, honest" is from 1872; earlier it meant "moderate, without great ambition" (1790).

level (v.)

mid-15c., "to make level," from level (n.). From c. 1600 as "to bring to a level;" 1958 as "to cease increasing." Meaning "to aim a gun" is late 15c. Slang sense of "tell the truth" is from 1920. To level up "to rise" is attested by 1863.

A word here as to the misconception labored under by our English neighbor; he evidently does not understand the American manner of doing things. We never level down in this country; we are always at work on the up grade. "Level up! Level up!" is the motto of the American people. [James E. Garretson, "Professional Education," in "The Dental Cosmos," Philadelphia, 1865]

To level off "cease rising or falling" is from 1920, originally in aviation.

level (adj.)

early 15c., from level (n.). To do one's level best is from 1851.

1. Solid low-level waste will be disposed of deep underground.

放射性水平低的固體廢料將做地下深埋處理。

來自柯林斯例句

2. Faculty members complain that their students are unprepared to do college-level work.

學院的老師們抱怨說他們的學生還很不適應大學的課業。

來自柯林斯例句

3. The water level in Lake Taihu has reached record levels.

太湖水位達到了曆史最高值。

來自柯林斯例句

4. The person who embodies democracy at the local level is the mayor.

在地方上代表民主的人是市長。

來自柯林斯例句

5. The results show the level of frustration among hospital doctors.

這些結果顯示了醫院醫生的不滿程度。

來自柯林斯例句