They also help him understand that people must cooperate and work toward common goals.

他们也帮助他理解，人们必须合作，为共同的目标而努力。

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Their mother says that they mustn't spend money on pleasure because there is a war and everybody must help.

她们的母亲说她们不能把钱花在享乐上，因为有一场战争，每个人都必须帮忙。

youdao

And,the FBI must believe that wide publicity about the criminal might help lead to an arrest.

VOA: special.2010.05.05

He says that the country's top echelon must be aware that their words and actions help those who are acting against the nation.

VOA: standard.2009.07.20

This government and the previous Labour government believed this necessary to reflect the fact that developers have seen an increased price of land with newly granted planning permission, and that developers must help a community with extra infrastructure to deal with the increased numbers of inhabitants.

BBC: UK Politics

My father was a minister of the church and I have learned again what I was taught by him: that wealth must help more than the wealthy, good fortune must serve more than the fortunate and riches must enrich not just some of us but all.

BBC: In full: Brown's speech to Congress

This problem-solving orientation means that the teacher must help students harness all the disciplines required to think through and solve a range of problems.

FORBES: Teaching Lessons from a 43-Year HBS Veteran