He showed his true colors under difficult circumstances.

Chrysophyta are living in this pond.

Chrysophyta perform photosynthesis underwater, supplying oxygen.

Using this free software will make your work more efficient.

Microsoft's new software has been released.

He learned about the concept of Gemeinschaft in his sociology class.

My hovercraft needs a new engine.

I participate in a softball game every weekend.

Japanese anime and manga are part of Japan's soft power that spreads around the world.

The coconut crab is the world's largest terrestrial crustacean.