ddt (rho U) + div (rho U U) – laplacian (mu U) = – grad (p)
My brother decided to paint the walls of his bedroom white. (paint a wall) In ancient China, the officials’s houses were always surrounded by a very high brick wall. (a high / low wall) We can hear our neighbour’s TV Continue reading some expressions about “wall”
She switched on the light by her bed and read for about an hour. (switch the light on / off) The light is on / off. The street lights come on at about 6:30 at this time of year. He Continue reading some expressions about “light”
I lay the new carpet in the living room. (lay a carpet) She ruined the carpet in the living room when she dropped a tin of paint on it. (ruin a carpet) The bedroom carpet is starting to wear in Continue reading collocations about “carpet”
I picked up a brush and swept the floor. (sweep the floor) I covered the floor with newspapers before I started painting the ceiling. (cover the floor with carpets/…) I have just finished mopping the floor. (mop the floor) She Continue reading Expressions on “Floor”
The ceiling is so low that I can touch it without standing on a chair. (touch the ceiling, a high / low ceiling) Martin lays on my bed and stares at the ceiling. It is a bare room with only Continue reading Expressions on “Ceiling”
I used to share a room with my brother/sister when I was young. (share a room) My uncle has a large house. He lets out one of the rooms to a student. (let out rooms) Helen promised that she would Continue reading Some Expressions About “Room”