del·ta
noun/ˈdeltə/
/ˈdeltə/
- [countable] the fourth letter of the Greek alphabet (Δ, δ)
希腊字母表的第 4 个字母 - [countable] an area of land, like a triangle in shape, where a river has split into several smaller rivers before entering the sea
三角洲 - the Nile Delta
尼罗河三角洲
- the Nile Delta
- Delta[uncountable] a variant (= form) of the SARS-CoV-2 virus that was first reported in late 2020 and named ‘Delta’ in 2021. It became the main form of the virus worldwide until the Omicron variant appeared in late 2021.
SARS-CoV-2 病毒的一种变体(= 形式)于 2020 年底首次报道,并于 2021 年命名为“Delta”。它成为全球病毒的主要形式,直到 2021 年底出现 Omicron 变体。 - The Delta variant proved to be more transmissible than earlier variants of the virus.
事实证明,Delta 变种比该病毒的早期变种更具传播性。
- The Delta variant proved to be more transmissible than earlier variants of the virus.
Word Originsense 1 Greek, from Phoenician daleth.sense 2 mid 16th cent.: originally specifically as the Delta (of the River Nile), from the shape of the Greek letter.