It is often that in sports records are made to be broken. This saying suggests records are made to be broken. This saying suggests there is no limit to athletic performance.
It was not until 1911, _______ the first vitamin was identified, _______ people realized the importance of it.
The moment I completed the 800-meter race in the school sports meet, my legs _______.
We’ve just heard a warning on the radio _______ a typhoon may be on its way.
Traditional Chinese medicine is thousands of years old and has developed _______ time.
_______ with the Japanese government, some Chinese people decided not to buy products from Japan any more.