He has a strong ambition and is always seeking self-improvement.

A journey to the Earth's core is a big challenge for scientists.

Could you please tell me how to calculate the excenter of this triangle?

He collapsed from cardiac arrest.

He always bears in mind the impact his actions have on others.

I should bear his words in mind and reconsider my actions.

His kindness stole my heart.

He was grieved at heart when he heard the news.

His sincerity attracted my heart.

He had always been in love with her.