It cannot translate everything you say, as it only stores 300 common expressions, like "The train has been put off" or "Watch your step".

它不能翻译你说的每句话，因为它只存储了300个常用表达，比如“火车被推迟了”或“注意你的脚下”。

youdao

Keep the bedroom for sleeping only. It's a bad habit for you to use your bedroom as a place to eat, watch TV, read, talk on the phone, or discuss important matters with your family members.

卧室只用于睡觉。如果你在卧室吃饭、看电视、读书、打电话或与家人讨论重要事情的地方，这是一个坏习惯。

youdao

He could only watch helplessly as the car plunged into the ravine.

他只能眼睁睁地看着汽车冲入峡谷。

《牛津词典》

It is exciting to stand only a few meters away and watch scientists clean the asphalt off a fossil that is thousands of years old.

VOA: special.2010.04.07

So that's the only change we need to make there and watch what happens when we actually run this.

那就是我们需要改变的,并且当我们运行它，会发生什么事情。

哈佛公开课 - 计算机科学课程节选

There were many others who were there only to watch the play.

VOA: special.2009.09.05

View 38 of the 40 watches that were on sale at the Only Watch auction.

FORBES: Charity Watch Auction in Monaco Raises $6.2M for MD Research

Our contributing editor for watches, Jack Forster, came up with ten timepieces that are exemplars of style for the buck, including the only watch that NASA has approved for space walks.

FORBES: Substance & Style

It is part of the Swatch Group, it is the only watch to have been worn on the moon and I for one am not about to argue with 007 whose timing is never less than perfect.

FORBES: Swatch Billionaire Nicolas Hayek, Who Saved The Swiss Watch Industry, Dies