make note of/make a note of

make note of 意为“注意到”“指出”“记住”：

He took to being out frequently in the evening; and of course the watchful Esther did not fail to make note of it. (Sinclair) 他在晚间经常出去，当然，警惕的艾斯特并没有忽视这一点。make a note (notes) of 意为“做笔记”“记录下来”：

I made notes of my patient's pulse and temperature. (Doyle) 我把患者的脉搏和体温记录了下来。