He lined his pockets with that project.

He was taken to the hospital because of pulmonary edema.

Heavy hydrogen is one of the isotopes of hydrogen.

Combinatorial mathematics is a branch of mathematics that studies the combinations of things.

He is majoring in applied mathematics at university.

The number subtracted from the minuend is called the subtrahend.

He is studying phallicism.

I can fall asleep immediately after taking a sleeping pill.

The government declared a state of emergency to prevent the spread of the new coronavirus.

Solving problems of arithmetic sequence is difficult.