The goal of this randomized clinical controlled trial is to determine whether the application of high frequency neuronavigated repetitive transcranial magnetic stimulation (nrTMS) on the contralateral of Broca's area can ameliorate glioma patients's non-fluent aphasia after tumor resection.

The questions this trial is aiming to answer are:

1. Whether the nrTMS can ameliorate glioma patients' postoperative language impairements.
2. if yes, how effective nrTMS is for improving glioma patients' postoperative language function.

The including criteria:

A. Right-handed, age: 20~65 years old, tumor involves left language function area, no previous history of treatment of neurological diseases, and preoperative cognitive and language function assessment is normal B. Access to formal education at the primary level and above C. Postoperative pathology is primary low-grade glioma D. Language function assessed as motor aphasia on days 7-10 after surgery E. Willing to receive nrTMS rehabilitation F. The patient and family sign informed consent

The excluding criteria:

A. Tumor grows across the midline to the opposite side B. Undergoing unplanned surgery after the first tumor resection C. Patients request to withdraw from the study during treatment D. During the treatment period, the patient is unable to continue treatment due to force majeure E. Patient loss or refusal of follow-up during the study F. Patients are considered by the investigator to be unsuitable for participation in this study

All patients will receive nrTMS treatment or nrTMS sham treatment for 7 sessions within 10 days (one session per day), start at the 7th - 10th day after glioma resection. The effects of nrTMS treatment will be determine by using the Western Aphasia Battery to evaluate patients' language function after each session and each follow-up interview (every 7-10 days after the whole treatment session finished until the end of the 3rd month after tumor resection or patients' language evaluation shows the language function recoveried to the normal level).

Inclusion Criteria:

A. Right-handed, age: 20~65 years old, tumor involves left language function area, no previous history of treatment of neurological diseases, and preoperative cognitive and language function assessment is normal B. Access to formal education at the primary level and above C. Postoperative pathology is primary low-grade glioma D. Language function assessed as motor aphasia on days 7-10 after surgery E. Willing to receive nrTMS rehabilitation F. The patient and family sign informed consent

Exclusion Criteria:

A. Tumor grows across the midline to the opposite side B. Undergoing unplanned surgery after the first tumor resection C. Patients request to withdraw from the study during treatment D. During the treatment period, the patient is unable to continue treatment due to force majeure E. Patient loss or refusal of follow-up during the study F. Patients are considered by the investigator to be unsuitable for participation in this study

There are two stimulating colis with the same shape, color and touch. The one is able to stimulate, the other is able to sham-stimulate. All patients are randomly assigned to use one of the two coils for treatment. Except for the designer, all participant, care provider, investigator, and outcomes assessorthey don not know who used which coil to treatment.