and the Strong-Whitfield catalogue for The Temptations' Number One single, "Just My Imagination (Running Away With Me)."

VOA: standard.2009.11.25

Or if we look at how strong it is, it's actually stronger than a single bond, but weaker than a double bond.

或者如果我们看键的强度的话，它实际上比单键更强，而比双键更弱。

麻省理工公开课 - 化学原理课程节选