As you probably already know, being punctual —— to the minute —— is held in high esteem among them.

你或许已经知道，准时到一分不差的地步在他们之间极受推崇。

Mr. Rolles arrived, punctual to the minute; he looked like a man upon his guard, and spoke low and sparingly.

罗尔斯先生准时到达。他看起来像个戒备森严的人，说话声音低沉而谨慎。