He was struggling to understand the concept of a hypercube.

The scutes of this crocodile are very hard, playing a defensive role.

Please press the power on button.

Please tell me the meaning of 'yokire'.

This problem requires the calculation of the tangent.

She gave birth by cesarean section.

I cut the vegetables with a new cutting board.

I went fishing near the reed cutting.

The acrocephalid warbler is a bird often seen in wetlands.

She decided to have a hysterectomy.