composed of

The houses in my hometown were chiefly composed of wood.

我家乡的房子过去多由木料制成.

A methane molecule is composed of one carbon atom attached to four hydrogens.

甲烷分子由1个碳原子与4个氢原子构成。

Over half the army was composed of conscripts.

军中一半以上是被征入伍者.

The university is composed of five academic schools.

整个大学由5个学院组成.

The melody that ran through his brain was composed of bad notes.

回荡在他脑海里的旋律都走调了。

Concrete is composed of cement, sand and gravel mixed with water.

混凝土由水泥 、 砂、石子与水掺和而构成.

Our class is composed of eighteen boys and twelve girls.

我们班由18个男生和12个女生组成.

The sea water is mainly composed of water and salt.

海水主要由水和盐组成.

The character " 王 " is composed of one vertical and three horizontal strokes.

“王 ” 字的写法是三横一竖.

All animals and plants are composed of cells.

一切动植物均由细胞组成.

The band is composed of many famous musicians.

乐队由许多著名乐师组成.

The committee was composed of professors and engineers.

委员会由教授和工程师组成.

Water is composed of hydrogen and oxygen.

水是由氢与氧化合而成的.

Every substance, no matter what it is, is composed of very small particles called molecules.

各种物质, 不论它是什么, 都是由一些称为分子的很小的粒子构成的.

30 years ago, scientists came up with the theory that protons and neutrons are composed of three smaller particles.

30年前，科学家们提出了质子和中子是由三种更小的粒子组成的理论。