The added competition keeps them on their mettle.加赛让他们全力以赴。The school inspection is going to put the teachers on their mettle.对学校的视察将使教师发挥出他们的全部潜力。For both sides, it's the first real test of their mettle this season...
The added competition keeps them on their mettle.加赛让他们全力以赴。The next game will be a real test of their mettle.下一场比赛就要看他们的拼搏精神了。When the seas are in turmoil , heroes are on their mettle.沧海横流,方显出英雄本色....