If a machine is push-button, you work it by pressing a button with your finger, rather than turning a handle, turning a key, or winding something. A push-button phone, a push-button lock, push-button controls. The hyphen is usual when the two parts sit in front of a noun. You may also meet push-button as a name for the button itself, though button already does that job.

If a machine is push-button如果一台機器是push-button的, you work it by pressing a button with your finger你是用手指按按鈕來操作它, rather than turning a handle, turning a key, or winding something而不是轉把手、轉鑰匙或上發條。A push-button phone, a push-button lock, push-button controls像push-button phone（按鍵式電話）、push-button lock（按鈕鎖）、push-button controls（按鈕操控）。The hyphen is usual當這兩個字放在名詞前面時 when the two parts sit in front of a noun通常會加連字號。You may also meet push-button你也可能看到push-button as a name for the button itself被用來指按鈕本身, though button already does that job雖然button這個字本來就有這個意思。

Though actually, people also use it as a picture-word. A “push-button war” or a “push-button world” means something you can start or control too easily, as if one finger were enough and you never had to get your hands dirty. That use is a little critical: it says the action has become too simple, and maybe too careless.

Though actually不過其實, people also use it as a picture-word人們也會把它當成一種比喻。A “push-button war” or a “push-button world”像「按鈕式戰爭」或「按鈕式世界」這種說法 means something you can start or control too easily是指一件事你太容易就能發動或控制, as if one finger were enough好像一根手指就夠了 and you never had to get your hands dirty而你根本不用弄髒自己的手。That use is a little critical這種用法帶點批評的意味: it says the action has become too simple指這件事變得太簡單, and maybe too careless也許太草率了。

The home meaning is still the physical one: press, and it works.

The home meaning is still the physical one核心意思還是實際那個: press, and it works按下去就會動。