This method is especially efficacious against cough presenting at the beginning of a cold.
此法对治伤风感冒早期出现的咳嗽尤其灵验。
A particularly efficacious, good, or beneficial quality; advantage.
尤其灵验的、好的或受益的品质；长处。
He got a phylactery from the temple, which was said to be very efficacious.
他从庙里请了一个护符，据说很灵的。
He got a phylactery from the temple, which was said to be very efficacious.
他从庙里请了一个护符，据说很灵的。
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