“变小”的英语？

这块木头的4个角刨过后就变小了。The piece was reduced in size by planing down the four corners.他近来老犯错误，胆子也开始变小了。Lately he'd been making mistakes; his nerve was beginning to go.休慢慢长大，她的影响力变小了，无法再控制他了。As Hugh grew older, she had less...