Expires
v. 期满( expire的第三人称单数 ); 文件、协议等（因到期而）失效; 断气; 逝世
🗣️ 情景例句
Because the United States is the most important trade partner.
因为美国是我们最重要的贸易伙伴。
It is hard to please all parties.
取悦各方，谈何容易。
The albatross is the king of the gliders, the class of fliers which harness the air to their purpose, but must yield to its opposition.
信天翁是滑翔飞行的鸟类之王，它能自如地驾驭空气，但必须顺气流飞行。