those words were never said aloud中的aloud可以用loudl

Question

替换吗

Answer 1

只能说是近义词，词义还是有些微的差别的。

aloud，大声地，出声地；意思有些偏“公开性地”大声说；
loudly，大声地，响亮地；意思偏“声音上”响亮地。
不建议替换。

Answer 2

OK.The usage is not in dictionaries.
cf:
And one of the things that a new director-general will need to do is to say, loud and clear: you can have GATT, or bilateral do-it-yourself trade policies, but you cannot have both.

Then he would hold the phone out to me and say, loud enough for Donleavy to hear, ‘Hey, it's the spook.’’

Answer 3

可以