得力助手的用法和样例：
例句
-
我的长子是我的得力助手。
My eldest son is my right arm. -
要不是我的朋友罗伯特愿意做我的得力助手的话，我可能永远也开不了业。
I could never have started this business if my friend Robert had not been willing to act as my man Friday. -
如果你需要详细的情况，请问斯蒂芬，他是我的得力助手。
If you require further details ask Stephen, he's my right-hand man.
