In addition to visible trades such as import and export goods and merchandise etc. outside, there is also invisible trade, include the commutation for serving of the of nation among them.
除了进出口货物和商品等有形交易之外，还有无形交易，其中包含国家之间服务的交换。
2
But Somalia's lawlessness is visible in the booming charcoal trade, which is annihilating what's left of the country's trees.
但从繁荣的木炭产业也可以看出索马里法律的无效，这个国家留下的树正在被消耗掉。
3
Two steel beams known as the tridents from the original World Trade Center tower were visible inside the National September 11 Museum during construction on July 28, 2011. Mike Segar/Reuters