n.埋头苦干的人，老黄牛(指吃苦耐劳的人)，耐用的机器

原形：workhorse复数：workhorses

The workhorse of the fleet is the C-130 Hercules, which has been in service for over 50 years.
这支机队的主力是C-130大力神运输机，它已经服役超过50年了。
The pickup truck is the workhorse of many tradesmen, used daily for transporting tools and materials.
皮卡车是许多手工艺人的得力助手，每天用于运输工具和材料。
The family sedan is the workhorse of suburban America, ferrying kids to school and parents to work.
家用轿车是美国郊区家庭的得力助手，每天接送孩子上学和家长上班。
The diesel engine is the workhorse of heavy industry, powering everything from trains to bulldozers.
柴油发动机是重工业的主力军，从火车到推土机，无所不包。
Excel is the workhorse of data analysis, providing powerful tools for sorting, filtering, and visualizing data.
Excel是数据分析的得力助手，提供了强大的数据排序、过滤和可视化工具。
The mule has been a workhorse of agriculture for centuries, valued for its strength and endurance.
驴子作为农业的得力助手已有数百年历史，因其力量和耐力而受到重视。
The internet has become the workhorse of modern communication, enabling instant messaging, video calls, and email.
互联网已成为现代通信的主力军，实现了即时消息、视频通话和电子邮件等功能。
The backhoe loader is the workhorse of construction sites, used for digging trenches, lifting materials, and clearing debris.
反铲装载机是建筑工地上的得力助手，用于挖掘沟渠、提升材料和清理废墟。
The laptop computer is the workhorse of the digital age, providing portability and power for work on the go.
笔记本电脑是数字时代的得力助手，为移动办公提供了便携性和强大功能。
The steam engine was once the workhorse of the Industrial Revolution, powering factories and locomotives.
蒸汽机曾是工业革命的主力军，驱动着工厂和火车。