I'm sorry. For these large orders, we insist on payment by L C.
对不起。对于这样金额大的订单,我们坚持用信用证支付。
There has long been a superstition among mariners that porpoises will save drowning men by pushing them to the surface, or protect them from sharks by surrounding them in defensive formation.
长期以来,海员中流传着一种迷信的说法,认为海豚会把快要淹死的人托到水面,救人性命;或在人们周围列队保护,使他们免遭鲨鱼伤害。