This is the 5733rd most frequent Chinese word.
口服
"Oral administration" or "taken by mouth."
Here, '口服' is used as a verb to specifically indicate the act of taking medicine through the mouth, emphasizing the method of administration.
这种药需要口服。
This medicine needs to be taken orally.
In this sentence, '口服' is used as an adjective modifying '液', explaining the type of medicine and its method of application.
口服液是通过口服方式使用的。
Oral solution is used through the method of oral ingestion.
Here, '口服' is part of the idiomatic expression '口服心服', which metaphorically means to admire wholeheartedly, showing that '口服' can also be used in figurative language.