Using the private railway makes commuting very convenient.

He understands the importance of learning.

He is majoring in psychology.

Gaku is my best friend.

These test results are showing unexpected outcomes.

We analyzed the data of the experimental group.

He has a deep interest in empirical science.

The experimenter analyzed the data in detail.

Animal experiments are necessary for the advancement of science, but there are also ethical issues.

Nuclear tests pose a great threat to world peace.