The term “internal combustion piston engine” referS to engines in which air and gasoline are buRNT inside the metal cylinders and which drive rotating crankshaft by means of piston and connecting rods. Since a great deal of heat IS produced when the gasoline mixture burns or explodes, some means must be provided to CARRY away the excessive heat. According to the cooling system employed the piston engines may BE CLASSIFIED as air-cooled engines and liquid-cooled ones.
I am going out of the house. I go straight and turn left going down the Polevaya street. Then I turn to the right and walk past private houses along Glavnaya Street. Then I turn left and go straight to school.
Is this a pen? Yes, it is. Are they pupils? No they aren't. Are you a student? Yes I am. Have you got a family? No I haven't. Has she got a family? Yes she has. We are happy.
Деревья всегда зеленые. Часто идет дождь в лесу. Прохладно. Большинство животных живут на деревьях. Там есть обезьяны, змеи и птицы. Так также есть лягушки и насекомые.