key wrench

• 套筒扳手

key wrench的用法和样例：

例句

1. We can reverse this pattern using specially generated adapter molecules made of antibodies that snap onto the arms of the virus like sockets on a socket wrench.
   我们可以将抗体制成转接分子，接在病毒的手臂上，就像套筒扳手的套筒一样，来扭转这种情况。