As for payment, we prefer an irrevocable L/C.

至于付款条件，我方希望开立不可撤销的信用证。

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The Barbary States, as they were known, demanded payment for the release of hostages and safe passage of American ships.

VOA: special.2009.05.27

With their help,Secretary Hay got the others to accept money -- not territory -- as payment for damages.

VOA: special.2010.07.29

Helmand Province Governor Gulab Mangal said an Emergency staff member received $500,000 as an advance payment for killing him.

VOA: standard.2010.04.12

In a speech earlier this year, he cited the importance of precision-target advertising, real-time search functions, e-commerce, revenue-sharing with third-party software and games developers as well as payment for digital content.

FORBES: SINA Corp Monetizes China's Twitter

Resources gained from the removal of harmful subsidies can then be used to create positive financial incentives for biodiversity protection, such as payment for ecosystem services schemes, whereby incentives are offered to landowners in exchange for managing their land to protect biodiversity and ecosystem services.

FORBES: The Future of Life On Earth: A Two-Part Discussion

On this account, governments impose taxes payable only in money, creating a demand for money that means it will be widely accepted as payment for goods.

ECONOMIST: Free exchange