a small vehicle that is manually operated and used on railway tracks for maintenance or inspection purposes

درایزین, دوچرخه ریلی
او یاد گرفت که چگونه درازین را به طور مؤثر عمل کند تا اطمینان حاصل شود که نگهداری راهآهن به موقع انجام شده است.
a vehicle with two wheels that we ride by pushing its pedals with our feet

دوچرخه
any of the circular objects typically found under vehicles like cars, bicycles, buses, etc., used to make movement possible by turning

چرخ, لاستیک
the structure of a building, piece of furniture, vehicle, etc. that supports and shapes it

بدنه, اسکلت
a flat part of a bicycle or machine that is pushed with the foot to make it move or operate. It is typically circular and part of the mechanism that drives motion

پدال
پدال دوچرخه من شل است و نیاز به سفت شدن دارد.
a person who rides a bicycle, motorcycle, horse, or other animal

سوار, دوچرخهسوار، موتورسوار یا اسبسوار
to create or design something new that did not previously exist

اختراع کردن, ابداع کردن
to keep something in a stable and even position, typically by adjusting or redistributing weight

تعادل چیزی را حفظ کردن
someone who makes or designs something that did not exist before

مخترع
لئوناردو داوینچی نه تنها یک هنرمند درخشان بود بلکه یک مخترع نیز بود که طرحهایی برای ماشینهای پرنده و نوآوریهای دیگر طراحی میکرد.
to move smoothly and effortlessly through the air or on a surface with little or no propulsion

*سر خوردن
قو سر خورد از روی برکه آرام، ردّی از موجها را پشت سر گذاشت.
to bring something into existence or make something happen

به وجود آوردن, خلق کردن
a place where important cultural, artistic, historical, or scientific objects are kept and shown to the public

موزه
related to the most recent time or to the present time

نوین, مدرن
with the purpose of achieving something

به سوی, به منظور
او سخت کار کرد به سوی گرفتن مدرکش.
the surface layer of earth that is solid and people walk on

زمین
to move or circulate from one location to another

تغییر مکان دادن
