overburden

名词 n. 动词 v.
中文释义
英 /ˌəʊ̯vəˈbɜːdn̩/    美 /ˌoʊvɚˈbɝdn̩/|/ˌəʉ̯vəˈbɜːdn̩/|[ˌɐʉ̯.vɐˈbɜːdn̩]

英文释义

名词 n.
  1. The rock and subsoil that lies above a mineral deposit such as a coal seam, or any other underground feature. countable,uncountable
    — Before much progress was made with the inverts, however, the movement became accelerated, and it was decided to lighten the load over the tunnel by removing some of the soil, […]. This reduction in the overburden arrested the movement, and the inverting and centring were completed, and the tunnel opened again to traffic on April 9, 1949.
  2. A sterile stratum that lies above the stratum being investigated. countable,uncountable
动词 v.
  1. To overload or overtax. transitive
    — In reality, the levels of work varied: some internationals seemed overburdened with tasks and responsibility, some seemed underburdened, and some faced apparently just the right amount of work.

词形变化

overburdens present,singular,third-person overburdening participle,present overburdened participle,past overburdened past overburthen alternative overburdens plural overburthen alternative

词源

词源 1
Etymology tree
Proto-Indo-European *úp
Proto-Indo-European *-er
Proto-Indo-European *upér
Proto-Germanic *uber
Old English ofer-
Middle English over-
English over-
English burden
English overburden
From over- + burden.
词源 2
Etymology tree
Proto-Indo-European *úp
Proto-Indo-European *-er
Proto-Indo-European *upér
Proto-Germanic *uber
Old English ofer-
Middle English over-
English over-
English burden
English overburden
From over- + burden.
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