1
run on the treadmill
on 后接跑步机等健身器械，表示在…上锻炼。
She runs on the treadmill for thirty minutes every evening.
她每天晚上在跑步机上跑三十分钟。
跑步机
treadmills — plural of treadmill
先理解核心含义，再看它在真实句子里的用法。
跑步机
an exercise machine with a continuous moving belt that you walk or run on while staying in the same place
She runs on the treadmill for thirty minutes every evening.
她每天晚上在跑步机上跑三十分钟。
室内健身器材,用于原地跑步或行走。
A piece of indoor sporting equipment used to allow for the motions of running or walking while staying in one place.
一种健身器材,由无尽的带子组成,可以在上面行走或慢跑而不移动位置
an exercise device consisting of an endless belt on which a person can walk or jog without changing place
由马、狗等踩踏循环带驱动的磨。
A mill worked by horses, dogs, etc., treading an endless belt.
由人或动物在圆形带子上行走或爬台阶驱动的磨坊
a mill that is powered by men or animals walking on a circular belt or climbing steps
She runs on the treadmill for thirty minutes every morning.
她每天早上在跑步机上跑三十分钟。
I prefer exercising outdoors, but when it rains I use the treadmill at the gym.
我更喜欢在户外锻炼，但下雨时我就用健身房的跑步机。
The hotel room has a small treadmill so guests can work out without leaving the building.
酒店房间里有一台小跑步机，这样客人不用出楼就能锻炼。
on 后接跑步机等健身器械，表示在…上锻炼。
She runs on the treadmill for thirty minutes every evening.
她每天晚上在跑步机上跑三十分钟。
I use the treadmill when it rains.
下雨时我用跑步机。
此处 treadmill 是比喻，指令人厌倦、周而复始的工作或生活。
He felt trapped in the treadmill of daily work.
他感到被困在日常工作的苦役中。
Not this
She runs on treadmill every morning.
Use this
She runs on a treadmill every morning.
treadmill 是可数名词单数，不能裸用；泛指任何一台跑步机时要在前面加 a/an。
Not this
I run the treadmill for 30 minutes.
Use this
I run on the treadmill for 30 minutes.
run 在这里是不及物动词，跑步机是器械，需要用介词 on 表示“在跑步机上跑”，不能把 treadmill 直接当作宾语。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
跑步机锻炼
I do a 30-minute treadmill workout after work.
我下班后做三十分钟的跑步机锻炼。
在跑步机上跑步
Treadmill running is easier on the joints than running outside.
在跑步机上跑步比在室外跑步对关节更轻松。
跑步机办公桌
He bought a treadmill desk to avoid sitting all day.
他买了一张跑步机办公桌，以避免整天坐着。
职场中令人厌倦的劳碌生活
She felt trapped on the corporate treadmill.
她感到被职场中令人厌倦的劳碌生活困住了。
摆脱单调忙碌的生活
After the accident, he decided to get off the treadmill and enjoy life.
事故之后，他决定摆脱单调忙碌的生活，享受人生。
日常生活的单调循环
Many people try to escape the treadmill of daily life.
许多人试图摆脱日常生活的单调循环。
摆脱单调乏味的日常节奏
After ten years in banking, she finally got off the treadmill and started her own business.
在银行业干了十年后，她终于摆脱了千篇一律的日常，自己创业了。
企业枯燥的日常工作循环
He felt trapped on the corporate treadmill, working the same hours every week.
他觉得自己被困在企业枯燥的工作循环里，每周都上同样的班。
生活的枯燥循环
Sometimes you need to step back and get off the treadmill of life to enjoy the moment.
有时候你需要退一步，跳出生活的枯燥循环，享受当下。
发短 /ɛ/ 音 (如 head, bread)
Use treadmills naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想：tread（踩踏）+ mill（磨坊）→ 在跑步机上不停踩踏，像磨坊里重复转圈，单调又累。
语域：neutral 常见场景：gym、home workout 该义项指健身器材，通常用于日常口语和一般书面语，语气中性；在健身房或家庭锻炼场景中都比较常见。
Words ending in 'ill' (/ɪl/) rhyme with the final syllable of 'treadmill': mill, fill, hill. 'tread' rhymes with red (/rɛd/). Beware: 'read' and 'lead' end in the same '-ead' spelling as 'tread' but are not always pronounced like it: 'read' is often /riːd/ (or /rɛd/ in the past), and 'lead' is often /liːd/ (or /lɛd/ for the metal).
Dictionary facts from ECDICT, WIKTIONARY.
Watch the sound change