A nuclear-free place has a rule: no nuclear materials here. You may not carry them, keep them, or use them in that area.

A nuclear-free place一個非核的地方 has a rule有一條規矩： no nuclear materials here這裡不得有核子物質。 in that area在那個區域裡， You may not你不可以 carry them帶著、 keep them存放， or use them或使用它們。

Towns, islands, and even whole countries have called themselves nuclear-free, often after people stood against nuclear weapons or nuclear power plants. In news and politics the word is serious and public; it is not slang.

Towns, islands, and even whole countries城鎮、島嶼，甚至整個國家 have called themselves都曾宣告自己 nuclear-free非核， often常常是 people stood against在人們起身反對了 nuclear weapons or nuclear power plants核子武器或核能電廠 after之後。 In news and politics在新聞和政治裡， the word is serious and public這個字是嚴肅而公開的； it is not slang它不是俚語。

Though actually, a “nuclear-free city” on a sign may mean “we do not want weapons here,” while a plant or a ship might still sit just outside the line — the tidy phrase can be tidier than the facts on the ground.

Though actually不過其實， on a sign招牌上的 a “nuclear-free city”「非核城市」 may mean可能只是說 “we do not want weapons here,”「我們不想要武器進來」， while a plant or a ship而電廠或軍艦 might still sit可能仍然就停在 just outside the line線外一點點的地方—— the tidy phrase整齊的字句 than the facts on the ground有時比地面上的事實 can be tidier還要整齊。

The second half is the same -free as in smoke-free: without this thing.

The second half後半段 is the same -free就是同一個 -free， as in smoke-free和 smoke-free 裡的一樣： without this thing沒有這樣東西。