He was lost in deep contemplation.

He pondered deeply and found a solution to the problem.

His new work is very moving.

This year's crop was very abundant.

He was cutting down a tree.

He signed my book.

Please calculate the value of the sine, which is one of the trigonometric functions.

He signed the contract.

Beautiful witch hazels are blooming in my garden.

The Hamamelis flowers are blooming in the garden.