"They should stipulate the terms first and then seal it."
"First they should specify the conditions and then seal it."
"They should stipulate the terms first and then seal it."
"they should ~" 「〜をするべき」
"stipulate ~" 「〜を明記して」
"the terms" 「条件」
"first" 「最初に」
"First they should specify the conditions and then seal it."
"specify ~" 「〜を明記して」
"the conditions" 「条件」