She welcomes constructive criticism.

她欢迎建设性的批评。

After their meeting, both men described the talks as frank, friendly and constructive.

会面之后，两位男士均形容此次会谈坦率、友好且富有建设性。

The Prime Minister has promised that Israel will play a constructive role.

首相承诺以色列将发挥积极的作用。

At least I'm doing something constructive.

至少，我是在做有益的事情。