polepszenie 英語で:

I hope that everything will bring about the amelioration of the world and mankind.

professional advancement

There aren't many career advancement opportunities in this company.

There is plenty of room for advancement within the company.

He thinks money will grant him social advancement.

For last decades we've been witnesses of great medical advancements.

Their lives were devoted to the advancement of science

As he'd long suspected, his position as Thrawn's aide was having a dampening effect on his own advancement.

The advancement of modern medicine was a long process.

Japanese seem to prefer picking a marriage partner as much like themselves as possible, finding a job that provides security and slow but steady advancement, and putting money in the bank.

His poor educational background was not a bar to his advancement.

Everyone has the right freely to participate in the cultural life of the community, to enjoy the arts and to share in scientific advancement and its benefits.