“be at pains”简单造句，be at pains造句子

be at pains to do sth.

As usual, he will be at pains to stress that his country wants only peace, but whether China continues its serene rise depends to some extent on how well it understands America and vice versa.

It will be at pains to let the masses know how the heir-apparent refused special treatment as a youth, instead working himself to the bone on some national task or other.