1. tighten one's belt v. 节衣缩食；紧缩开支
If you want to save money, you'll have to tighten your belt for “saving is getting”.
如果你想存些钱，你就得节衣缩食，因为“节省钱就等于挣钱”。
2. fall on deaf ears v. 未被理睬，未受到重视
She would feel heartbroken if she knew that her advice to you had fallen on deaf ears.
如果她知道你把她的忠告当成耳旁风，她会很伤心的。
