广泛的核实的英文

• extensive verification

• 广泛:    extensive; wide-ranging; wid ...
• 的:    4次方是 The fourth power of 2 i ...
• 核实:    verify; check
• 广泛的:    broad; catholic narrow; comprehensive; cyclopaedic; cyclopedic; extensive; far-flung; far-ranging; far-reaching; inclusive; large; spacious; wide-ranging; widespread
• 成本的核实:    cost ascertainment