• It was not until 30 years later that the study of these viruses became popular.
• It was another 17 years before the first engine was developed.
• It was not until 30 years later that the study of these viruses became popular.
• It was another 17 years before the first engine was developed.
Циммерман М., Веденеева К.. Русско-Английский научно-технический словарь переводчика. Russian-English scientific dictionary for translators. 2012