opportunistic infect

• 机会感染

opportunistic infect的用法和样例：

例句

1. Oral sex can give either type the chance to infect the usual site of the other.
   口交会使这两种类型有机会感染他人常用的部位。
2. In some instances, patients develop opportunistic infections during this early phase of infection.
   在某些时候，病人在感染初期会有机会感染的可能。