c. 1300, from Latin alpha, from Greek alpha, from Hebrew or Phoenician aleph (see aleph). The Greeks added -a because Greek words cannot end in most consonants. Sense of "beginning of anything" is from late 14c., often paired with omega (last letter in the Greek alphabet) as "the end." Sense of "first in a sequence" is from 1620s. Alpha male was in use by c. 1960 among scientists studying animals; applied to humans in society from c. 1992.
双语例句
1. Alpha-Bravo-Zulu 643 to Saltezar, do you read me? Over.
阿尔法－布拉沃－祖鲁643呼叫萨德扎，能听到我的声音吗？完毕。
来自柯林斯例句
2. The alpha - channel of the material's lightmap defines material is visible.
材质光照图的Alpha通道定义了材质的可见部分.
来自互联网
3. The Alpha level is associated with intuition and ESP.
Alpha层次是与直觉和ESP联系在一起的.
来自互联网
4. This approach suggests the whole idea of alpha might be an illusion.
