医生建议他每周接受一次输血治疗。

The doctor recommended weekly ___transfusions for his treatment.

病人需要静脉输液来补充流失的水分。

The patient needed intravenous ___transfusions to replace lost fluids.

两国之间的思想交流促进了科技领域的进步。

The intellectual ___transfusions between the two nations boosted progress in technology.