বই Four Corners 3 - ইউনিট 4 পাঠ D

someone who is trained to travel and work in space

সহাকাশচারী

all the people who work on a ship, aircraft, etc.

দল

happening in or between more than one country

আন্তর্জাতিক

a large structure used as a long-term base for people to stay in space and conduct research

স্পেস স্টেশন

a vehicle designed and used to go to space and return multiple times

মহাকাশগামী যান

to teach a specific skill or a type of behavior to a person or an animal through a combination of instruction and practice over a period of time

to move or travel through the air

বায়ু মাধ্যমে উড়ে

something such as a hammer, saw, etc. that is held in the hand and used for a specific job

সাধনী

to make or design something that did not exist before

কিছু উদ্ভাবন

different or better than what is normal

সাধারণ নয়

a big round mass covered in land and water, on which we all live

পৃথিবী

a thin tube made of plastic, glass, etc. for sucking drinks

খড় পান করা

to be in motion on a body of water or current of air at a slow pace

ভাসমান হচ্ছে

used to give permission or express agreement

অবশ্যই

to achieve something after dealing with the difficulties

কষ্ট করে কিছু অর্জন করা

to think about something carefully before making a decision or forming an opinion

কিছু বিবেচনা করা

the event or process of a baby being born

জন্ম

either of two children born at the same time to the same mother

দ্বিতয়