We have this day sent you, per sample post, a sample of No. 3 mixed oats, which we quote $10.00 per qr., f.o.b. San Francisco.是什么意思_We have this day sent you, per sample post, a sample of No. 3 mixed oats, which we quote $10.00 per qr., f.o.b. San Francisco.在线翻译_英语_读音_用法_例句