solid

• 指物体坚固、结实、实心而非空心的；也指事物可靠、扎实或质量好。

Describes something that is firm, strong, and not hollow; also used to describe something reliable or of good quality.

1. Firm and stableA2formal

   Not liquid or gas; having a firm shape that does not change easily.

   坚固的、稳定的

   • The ice was solid enough to walk on.
   • The table is made of solid wood.
   • After freezing, the water becomes solid.

   同义词firmhardrigidstablesturdysubstantial

   反义词flimsyshakyunstableunsteadyweak

2. Reliable and strongB1formal

   Dependable, strong, and not likely to break or fail.

   可靠而坚固

   • He is a solid worker who never misses a deadline.
   • The company has a solid reputation in the industry.
   • We need a solid plan to succeed.

   同义词dependablefirmreliablerobustsoundstablestrongsturdysubstantialtrusty

   反义词flimsyfragileunreliableunstableweak

3. Continuous and unbrokenB1formal

   Without any breaks or gaps; all in one piece.

   连续的

   • She slept for a solid eight hours.
   • The wall is a solid block of concrete.
   • He worked for a solid week without a day off.

   同义词continuousentireintactseamlessunbrokenuninterruptedwhole

   反义词brokendiscontinuoushollowinterruptedporous

4. Good but not exceptionalB2informal

   Used informally to describe something that is satisfactory or decent.

   不错的

   • That was a solid performance by the team.
   • He gave a solid presentation at the conference.
   • The meal was solid, but not the best I've had.

   同义词adequatecreditabledecentfineokaypassablereasonablerespectablesatisfactoryserviceable

• 指物质的一种状态，具有固定的形状和体积，不是液体或气体；也可指具有这种性质的物体本身。

A noun referring to a substance or object that is firm and stable in shape, not liquid or fluid.

1. Three-dimensional shapeB1formal

   A three-dimensional object or figure, as opposed to a flat surface.

   立体图形

   • In geometry class, we studied various solids like cubes and spheres.
   • A pyramid is a type of solid with a polygonal base.
   • The artist carved a beautiful solid from a block of marble.

   同义词bodythree-dimensional figure

   反义词planesurface

2. State of matterA2formal

   A substance that is firm and stable in shape, not a liquid or gas.

   固体

   • Ice is the solid form of water.
   • Metals are solids at room temperature.
   • The solid turned into a liquid when heated.