Gallium arsenide is a type of semiconductor, widely used in high-frequency electronic devices.

The use of this machine is simple.

Semiconductor technology forms the basis of modern electronic devices.

This is a kind of flower.

Setting up a new device is difficult.

Gallium is one of the elements on the periodic table.

This water is dangerous to drink because it contains arsenic.

Looking at this vast sea, I feel free.

Hiroshi is my best friend.

This room is known for its spaciousness.