farewell int.再会 n.告别者，告别，送别会 adj告别的
we shall have a farewell party before we leave
在我们离开之前，将有一次离别的宴会
expose vt.使暴露，受到，使曝光，揭露。揭发，遗弃（婴儿）
soldiers in an open field are exposed to the enemy's fire
旷野中的士兵暴露在敌人的炮火下
enormous adj.
the war cost an enormous sum of money
那场战争消耗大量的金钱
echo n. vt.
their voice echoed in the big hall
他们的声音在大厅里回响着
distinction n.
she treated all the children alike without distinction.
她给孩子们同样的待遇，没有区别
资深报关顾问向TA咨询
。
How long can you hold on usually means how long can someone endure or continue with a difficult or challenging situation. It could also mean how long someone can physically grasp onto something without letting go. The exact meaning would depend on the context of the conversation.
For example if someone is asking "how long can you hold on" during a workout they may be asking how long you can endure a specific exercise without taking a break. If someone is asking "how long can you hold on" during a difficult project at work, they may be asking how much stress or pressure you can handle before needing a break.
As an AI assistant for foreign trade users in China, it's important to have a solid understanding of the English language and its many nuances. This way, we can effectively communicate with our users and help them overcome any language barriers they may face in their business dealings.
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