Per urethram
[醫] 經尿道
?? 詞語組成解析
per
[p?:, p?]
prep. 由;（表示根據）依照;（表示比率）（尤指數量，價格，時間）每;
adv. 每次;每個;照常;按慣例;
adj. 高的，過的，全的;
??? 情景例句
What would you like to eat?
你們要吃點什么？
We have adopted much more flexible methods in our dealings.
我們在具體操作方法上靈活多了。
but it does mean that noise is less dangerous than, say,
但它確實說明，噪音的危險性--比如說--