As a developing country, our whole international competition of economy is still not strong; the service trade is also one of the weakest sections.
中国作为一个发展中国家,经济整体的国际竞争力还不强,服务贸易更是国际竞争力最弱的部门之一。
参考来源 - 扩大我国服务贸易的研究·2,447,543篇论文数据,部分数据来源于NoteExpress
就算是最弱的项目,也有不少突破。
整个链条的强韧与否,要看最弱的那一环。
And obviously, no bond is the weakest of all is not bonding.
显然,没成键是最弱的。
So what actually turns out the reality is that h e 2 does exist, but it exists as the weakest chemical bond known, and it wasn't, in fact, even found to exist until 1993, so I can assure you this is not a bond that you see very often in nature, and it is a very, very weak bond.
实际上He2键是存在的,但它是目前所知的最弱的键,直到1993年它才被发现,所以我可以向你们保证在,自然界你们不可能经常看到它,它是种非常非常弱得键。
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