The meat was tough and flavourless.

这肉咬不动，又没有滋味。

《牛津词典》

Persuading the world to eat less meat looks like a tough task.

说服全世界少吃肉看起来是一项艰难的任务。

youdao

Persuading the world to eat less meat looks like a tough task. In country after country, as people become wealthier they eat more meat.

让全世界的人都少吃肉看起来是一个复杂的任务，随着一个个国家的人民日益富裕，他们进食越来越多的肉类。

youdao

The most common is beef brisket -- with a combination of patience, experience and skill, a seasoned pit boss can transform this notoriously tough meat into a perfectly smoked, tender slab of heaven.

BBC: A user��s guide to Texas barbeque

Goats bred for milk or their janitorial talents may be slaughtered when they're older, which yields meat that can be tough and gamey.

WSJ: Get Your Goat On

This will yield an unpleasantly tough hunk of meat.

WSJ: Mom-and-Pop Pulled Pork