Costing about US$1.4 billion, it is the most expensive ground-based telescope in operation.
Costing more than a billion US dollars, it is the worlds's most expensive ground-based telescope.
Costing more than a billion US dollars, it is the worlds's most expensive ground-based telescope.
わかりやすくするためにこの文を書き直してください: Costing about US$1.4 billion, it is the most expensive ground-based telescope in operation. 出力: