Stop carrying the weight of the world on your shoulders.
别太操心了,没有你地球照样转。 (carry the weight of the world on one’s shoulders:自以为重任在肩。)
The buyer has the right to cancel the contract unilaterally if the seller fails to ship the goods within the L/C validity.
如果卖方不能在信用证有效期内交货的话,买方有权单方面取消合同。
She enjoyed herself making the assistant bring almost everything in the window before finally buying the dress she had first asked for.
她开心地迫使那位售货员把橱窗里几乎所有的东西都拿了出来,最后才买下了她最先要看的那一件。