The challenge with hepatitis C was not just to find the virus, but to understand how it evades the immune system.
丙型肝炎的挑战不仅在于找到病毒，还在于理解它是如何逃避免疫系统的。
To be a writer is to be a perpetual outsider, always observing, never quite belonging.
一个好人生命中最美好的部分：他那些微小、无名、被遗忘的善行和爱。
The context is the starting point of any project.