在书信集的倒数第二封信中，汉芙急切的告诉她前去旅行的朋友：“倘若你碰巧经过查令十字街84号，定代我献上一吻，因我欠他良多。”

In the collection's penultimate entry, Helene Hanff urges a tourist friend, "If you happen to pass by 84, Charing Cross Road, kiss it for me. I owe it so much."

youdao

基于一种两步稀疏表示的方法，利用随机框架讨论欠定盲源分离的恢复能力。

This paper discusses the recoverability of underdetermined blind source separation(BSS), based on a two-stage sparse representation approach.

youdao

非负矩阵分解（NMF）要求分解得到的左矩阵为列满秩，这限制了它在欠定盲分离（UBSS）中的应用。

The decomposed left matrix of Non-negative Matrix Factorization (NMF) is required to be full column rank, which limits of its application to Underdetermined Blind Source Separation (UBSS).

youdao

They typically--they like to talk about the politics of it and this thing, that it's dead on arrival or it'ssomeone said it's an amateurish proposal.

他们不约而同地大书特书这个改革的政治色彩,或者说些这个计划死定了之类的话,有的人还说这是个欠考虑的改革计划。

耶鲁公开课 - 金融市场课程节选