We must work hard to catch up with the advanced technological level.
我们必须努力工作以赶上先进的技术水平。
Our technological level is not high and the categories of technologies are incomplete.
我们的技术水平还不高，技术种类也还不全。
Our technological level is not high and the categories of technologies are incomplete.
我们的技术水平还不高，技术种类也还不全。
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