He wasn't well, so we had to leave him behind.
他身體不適，因此我們只好把他留下。
I don't want to leave anything behind
我不想留下任何東西。
Please call for me when you go; don't leave me behind.
你去的時候叫我一聲，可別把我閃下。
Take care not to leave anything behind.
當心別丟下東西。
Just think; tomorrow we shall walk out of this place and leave it all behind us forever
你想想看，明天我們就要走出這個地方，再也不回來了。