She welcomes constructive criticism.

她欢迎建设性的批评意见。

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

会见之后，两位男士都形容这次会谈坦诚、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。