a warship that can operate both on and under water

ponorka, ponořená loď
Ponorka se vynořila u pobřeží, aby vysadila speciální síly pro utajovanou operaci.
a type of small vehicle that is used to travel on water

loď, člun
beneath the surface of a body of water

pod vodou, podvodní
Potápěč prozkoumal korálový útes tím, že zůstal pod vodou téměř hodinu.
to visit places one has never seen before

prozkoumat, objevovat
the vast body of salt water that covers most of Earth's surface
the armed forces of a country

armáda, ozbrojené síly
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

pedál, šlapka
Na tomto kole nemohu pohodlně dosáhnout na pedály.
a machine that uses steam made from boiling water to produce power and make parts move

parní stroj, parní motor
Starý vlak byl poháněn parním strojem.
a state of armed fighting between two or more groups, nations, or states

válka
the war that took place from the year 1914 to 1918 between the allies and the central powers

První světová válka
the war that took place from the year 1939 to 1945 between the axis and the allies

Druhá světová válka, II. světová válka
to act violently against someone or something to try to harm them

útočit, napadat
a country or its forces that one is fighting against in a war

nepřítel, protivník
an internal-combustion engine that burns heavy oil

dieselový motor, motor na těžký olej
a device that produces electricity; may have several primary or secondary cells arranged in parallel or series

elektrická baterie, baterie
newly developed and incorporating new, modern methods or technology

pokročilý, inovativní
Aplikovali pokročilé algoritmy ke zlepšení rychlosti zpracování dat.
a type of energy generated by splitting atoms to release their stored energy

jaderná energie, jaderná síla
Pokroky v technologii jaderné energie učinily z ní životaschopnější možnost pro udržitelnou energii.
to prevent someone or something from being damaged or harmed

chránit, zachovat
someone whose job or education is about science

vědec, výzkumník
the earth's surface where it is not under water

země, půda
to keep something in a particular place for later use, typically in a systematic or organized manner

uskladnit, skladovat
(plural) necessary things, such as food, medicines, clothes, etc. for a group of people

zásoby, dodávky
a deep, narrow, steep-sided depression on the ocean floor

příkop, oceánský příkop
Sedimenty se v hlubokomořských příkopech hromadí v průběhu času.
