adjective困难的,艰难的;棘手的;严格的,严厉的;强硬的;健壮的,强健的;(肉)难切开的,嚼不烂的;坚固的,结实的;彪悍的,粗暴的;粗野的;充满暴力犯罪的
adjectivedifficult
adjectivemaking sure that people follow the rules and not caring about any problems that this may cause
adjectivevery strong
adjectiveTough meat is difficult to cut and eat.
adjectivedifficult to break, damage or pull apart
adjectivestrong and possibly violent
adjectivewith a lot of crime or violent behaviour