Translation:Normally, men are taller than women.
I need to object here for my own sanity. If you put the men from Portugal together with the women from the Netherlands then the women would generally be taller and there would be nothing abnormal about that.
Generally makes for a better statement in English than normally in this case.
You have been to the Netherlands but not Portugal?! It's a cheap Ryanair hop away!
I did not feel out of place in the Netherlands (except when walking into the Apple store from the bitter cold and the clerk there mixed up my gender as he could not tell whether I was a guy or a girl under all my weather gear – he guessed wrong and was way more embarrassed than I was :D).
But I felt positively tiny in the Iceland Airport. It must have been discount day for those over 6 feet tall. If you are an airline, what are you going to do after taking all the legroom away? :D
You must be one of those who would qualify for the discount. :)
Getting back to the subject of the comment...I, too, was uncomfortable writing "normally", for the same reason. In the US, it's "politically incorrect" to refer to something one cannot change, such as height or sexual orientation, as "normal". The latter is an especially sensitive issue, and even "generally" might be taken as an offense (which is crazy, but one must be careful with certain audiences).
If you are learning both languages (like me), the good thing to do is to improve one of them a lot first (Spanish would normally be a better choice since it is easier) and then proceed with the other. That way, you learn words in one language you already know well in the other and they do not get mixed up even though they sound similar.
Also, when I'm learning words in Portuguese, I try to remember the corresponding Spanish words and note the difference. By doing that, I notice the words which are truly different (like falar and hablar, or achar and pensar) and that I should pay attention to them so that I don't speak Portunhol instead of Portuguese (it is easy to start slide into simply pronouncing Spanish words in a Portuguese way otherwise).
Good advice, but note that hablar actually has the same etymology as falar. Both originate from Old Spanish/Old Portuguese fablar. In Spanish f often turned into a mute h, which sometimes lead to obscure words like hablar and hijo (with the same etymology as filho: OSp fijo, OP fillo, Latin fīlius). If you get used to such deeper correspondences you could turn still more words between Spanish and Portuguese (and any other closely-related languages for this matter).