• Women aged 18-70

• Unilateral invasive carcinoma confirmed by histology (regardless of pathological type)

• The initial diagnosis condition can be directly operated, without absolute surgical contraindications

• No gross or microscopic tumor remains after surgical resection

• Adjuvant chemotherapy should be started within eight weeks after surgery

• Patients with Hormone receptor-positive, HER2-negative (HR+HER2-), and positive axillary lymph nodes ≥4

• Definition of ER and Progesterone Receptor (PgR) positive: Positive ER for tumor cells detected by immunohistochemistry is defined as ER positive , and positive PgR for tumor cells detected as PgR positive .

• There was no evidence of metastasis in clinical or imaging aspects during preoperative examination

• No peripheral neuropathy;

⁃ Eastern Oncology Collaborative Group (ECOG) physical status score: 0 or 1

⁃ Good postoperative recovery, at least 1 week interval between surgery

⁃ Adequate hematological and end-organ function as defined by the following laboratory test results, which need to be completed within 28 days prior to the first study treatment: absolute neutrophil count (ANC) ≥ 1500 cells/μL (no granulocyte colony stimulating factor (G-CSF) support therapy within 2 weeks prior to day 1 of course 1); Lymphocyte count≥ 500 cells/μL; Platelet count≥ 100,000 cells/μL (no platelet transfusion within 2 weeks before day 1 of course 1; hemoglobin≥ 9.0 g/dL; Aspartate transferase (AST), Alanine aminotransferase (ALT), and alkaline phosphatase≤ 2.5 × upper limit of normal (ULN) serum total bilirubin ≤ 1.0 × ULN; Patients with known Gilbert disease and serum bilirubin levels ≤ 3× ULN may be admitted; For patients not receiving anticoagulant therapy: INR or activated partial thromboplastin time (APTT) ≤ 1.5 × ULN within 28 days prior to initiation of study therapy; For patients receiving anticoagulant therapy: a stable anticoagulant regimen within 28 days before the start of study therapy and a stable International normalised ratio (INR); creatinine clearance≥ 30 mL/min (calculated using the Cockcroft-Gault formula); Serum albumin ≥ 2.5 g/dL

⁃ For women of childbearing age: agree to remain abstinent (avoid heterosexual intercourse) or take an annual failure rate for at least 5 months during treatment and at least 6 months after the last dose of docetaxel or epirubicin, or 12 months after the last dose of cyclophosphamide, whichever occurs last \< 1% of contraception. A woman who is postmenopausal but has not yet reached postmenopausal status (menopause lasts ≥for 12 consecutive months, for no reason other than menopause) and has not undergone sterilization (ovarian and/or hysterectomy) is considered fertile.

⁃ Cardiac function: left ventricular ejection fraction (LVEF) \>50% by ultrasound examination

⁃ Sign the Informed Consent Form (ICF)