The dog let out a savage howl and, wheeling round, flew at him.

狗发出凶猛的嗥叫声，转过身向他猛扑过来。

《柯林斯英汉双解大词典》

Don't let the dog out in this cold weather.

在这种寒冷的天气，不要把狗放出去。

youdao

The only way to find out if I was right was to let the dog go free.

唯一确认我这一想法是否正确的方法便是把狗放开。

youdao

They could be told to only let their dog out in public wearing a muzzle, or to keep the dog away from certain parks and roads.

BBC: Dog control law could mean training sessions for owners

"Let the dog out, " he said.

NPR: Excerpt: 'The Broken Shore'

Try not to let your dog ride with his head out of the window.

CNN: Tips for road tripping with pets