The second sentence the word is used correctly, but it is weak. The first sentence, the word is not used correctly. I think that the sentence, "Are these snacks really sufficient for your trip?," is more proper.
The content of this sentence should be sufficient to satisfy your needs.
Log file analysis is not sufficient for this purpose.
I am not writing a sentence using that word.
Sufficient means enough.ExampleI don't have sufficient money to buy a new car.
I can give you a sentence using the word galaxy.
a sentence using the word endotracheal
This is a sentence using the word aviator.
I am saying a sentence using the word collagen.
This is a sentence using the word monomer. :P
this is a sentence using the word armchair.
Need a sentence using the word crater?