Retroviruses
n. [病毒] 逆轉錄酶病毒（retrovirus的復數）
??? 情景例句
Upon confirmation of receipt of funds, the goods will be promptly forwarded to your residence.
在確認收到貸款后，貨物會馬上被送到你的住處。
He said he spoke a little English.
他說他會說一些英語。
Ha ha ha! Goodbye, Mr Tiger,laughed the monkey and he went away.
“哈哈哈！再見，老虎先生，”猴子哈哈大笑，走開了。