'Watashi WA yowai desu.'
ningen
You would call them a "person" or better yet, call them by their name.
You may say 'Doushite boku WA konna ni yowai,' among others.
NO "we" cant ... there are people that don't believe in a god ...
As of now, there is no evidence to suggest that human beings have ever been to Mars. Several unmanned missions have been conducted to explore the planet, but no human presence has been confirmed.
Necessities are such needs of human beings that are without them human beings cannot be survived like Food, Shelter, Clothing and Family; we can also say them basic needs whereas luxuries are such needs by which human beings can live but these are wanted to make life easy and luxurious like Car, Motorbike, Mobile etc By: Musadiq
I would say "weak at" eg I am very weak at mathematics,
"Omae WA yowai. Naze yowai ka? Tarinai kara...nikushimi ga." (You are weak. Why are you weak? Because you lack... hatred." Here it is on youtube with Japanese subtitles http://www.youtube.com/watch?v=LzyP-VfoqFA&feature=related
Human beings (some also say Dolphins, but it is far from proven) are the only creatures on earth that have language.
We have body hair and can survive for long durations away from water. Safe to say we're mammals.
"All human beings are born free and equal in dignity and rights" in Greenlandic is "Taamaattumik ilaapillunguatigaaneq atorluarneranik annertuumik ineqqatigalugu."