WHAT DOES DIGGING MEAN?

Some pulsars, which have a diameter with regards to the dimension of a town, can spin many times per second. The speediest a single, introduced in Science in 2006 and dubbed Terzan 5ad, rotates 716 moments for each second., carried out between 1984 and 1990. Cambridge English Corpus から Developers may be obliged to have surveys and excavations c