workhorse

n.

驮马，做粗工者，重负荷机器；

复数：workhorses

1. To you I'm a workhorse, a punching bag!
   对你来说我只是一匹马和一个出气筒!
2. No matter to Luke, the Workhorse.
   但是，对于劳动者卢克来说，这没什么。
3. They are the workhorse of machine designers.
   它们是机器设计者的重要工具。

Gravity Equations: Workhorse, Toolkit, and Cookbook
Gravity Equations: Toolkit, Cookbook, Workhorse
Workhorse semilocal density functional for condensed matter physics and quantum chemistry
Plasmalogens: workhorse lipids of membranes in normal and injured neurons and glia.
Autonomous profiling floats : Workhorse for broad-scale ocean observations
Rationalizing the Political Business Cycle: A Workhorse Model
Gravity equations: Workhorse or Trojan horse in explaining trade and FDI patterns across time and space?
Cowpea mosaic Virus: The Plant Virus–Based Biotechnology Workhorse
Structure of a tRNA repair enzyme and molecular biology workhorse: T4 polynucleotide kinase
The Complete Genome Sequence of Escherichia coli DH10B: Insights into the Biology of a Laboratory Workhorse