adj.(已持續(xù))長(zhǎng)時(shí)間的；為時(shí)甚久的

In view of our longstanding business relation, we can consider accepting your counter-offer. 鑒于我們之間長(zhǎng)期的業(yè)務(wù)關(guān)系，我們可以考慮接受你方還盤。

On our part, we appreciate the longstanding cooperation between us. 從我們這方面說，我們也贊賞我們之間的長(zhǎng)期合作。

The BDR has longstanding grievances over pay and conditions. BDR已經(jīng)長(zhǎng)期不滿他們的薪酬條件和現(xiàn)狀。