Oceanographic observations are very difficult, but they are fun.
Are you? Do you?
It's hard, so maybe it's fun.
ABC of oceanographic observations are considered.
I don't say that I'm sleepy or tired.
I don't brag about not sleeping.
It's an endurance tournament without winners.
(Second, time is strict, which is too common, and "loose" doesn't get in.)
That is to say,
Recently, students have participated in the tournament, and I have come to enjoy watching the students grow around the side watching the tournament.
The haggard figure of Kijima no kimi (alumni), who looks like a bear, is impressive. He should be working hard at a private company right now.
(It may be said to be black ○△×.)