current limitation

例句：

1. 1. The current president is a man named Obama.
   现任总统是奥巴马。
2. 2.We need to make the necessary changes to keep up with the current trends.
   我们需要做出必要的改变，以跟上当前的潮流。
3. 3.The current economic situation is causing a lot of concern among the public.
   当前的经济形势让公众感到担忧。