We'll open a letter of credit if you promise to effect shipment one month earlier.
如果你方答应提前一个月交货，我们就同意开信用证。
商务英语
付款（一）
📚 句中词汇解析
从本句中提取的重要词汇
n. 信誉，信用;[金融]贷款;荣誉;学分;
vt. 相信，信任;归功于;[会]记入贷方;赞颂;
💡 cred相信，信任+it表名词 → 信任；学分
"Chip and PIN is designed to combat credit card fraud."
智能卡系统是专为防止信用卡诈骗设计的。
近义：loan, ascribe, assign, attribute, accredit, accommodation
反义：invoice, bill, charge, expense
vt. 允诺，许诺;给人以…的指望或希望;
vi. 许诺;有指望，有前途;
n. 许诺;希望，指望;允诺的东西;
💡 pro前面+mise送，放出→在做事前送出的话→允诺
"If you make a promise you should fulfill it."
如果你许诺了,你就要履行你的诺言.
近义：assure, pledge, vow, offer, present, proffer
反义：recede, recoil, retire, retreat, withdraw, blench
n. 影响;效果;印象;所有物;
vt. 使发生;引起;产生（效果）;
💡 ef出+fect做，制作→做出来→实施；生效；效果
"the cumulative effect of human activity on the world environment"
人类活动对世界生态环境日积月累的影响
近义：implement, make, materialize, occasion, officiate, operate
反义：motive, occasioner, origin, point, reason, root
n. 装运;载货量;装货，装载的货物;
💡 ship船+ment表名词 →装船，装运
"The goods are ready for shipment."
货物备妥待运。
近义：remission, remittal, remittance, sending, shipping, submittal
adj. 敞开的，开着的;公开的，公共的;坦率的;有议论余地的;
vt.& vi. （打）开;开始;睁开;启动;
n. 户外，野外;空旷;公开;
vi. 使打开;展示，显现;
vt. 张开;开放;开张营业;为（建筑物）揭幕;
💡 打开圆(o)盒,取出钢笔
"The tournament is open to both amateurs and professionals."
这次锦标赛业余选手和职业选手均可参加。
近义：unclose, unlatch, unlock, unseal, inaugurate, incise
反义：lock, seal, shut, stitch, tuft