According to a survey, students' safety has become a big problem.
根据一项调查，学生的安全已经成为一个重大问题。
How to find the requisite information quickly and accurately has become a big problem for the users.
如何快速、准确的从浩瀚的信息资源中找到自己所需要的信息已经成为困扰用户的一大难题。
The low effect of moral education has become a big problem which has troubled the educational work in institutions of higher learning.
德育工作实效性低，已经成为目前困扰高校教育工作的一个大问题。
Due to the weakness of FECG and the effect of various noises, catching the FECG has become a big problem for signal process the academic circle.
由于胎儿心电信号本身非常微弱，加上各种噪声和干扰的影响，提取FECG成了信号处理学界的一大难题。
Inflation was being caused mainly by rising prices of raw materials and energy but many manufactured goods remained in oversupply, meaning that inflation "will not become a big problem", he said.
通货膨胀主要是原材料和能源价格上涨引起，但许多制成品依然供应过剩，意味着通货膨胀“将不会成为大问题”，他说道。
Inflation was being caused mainly by rising prices of raw materials and energy but many manufactured goods remained in oversupply, meaning that inflation "will not become a big problem", he said.
通货膨胀主要是原材料和能源价格上涨引起，但许多制成品依然供应过剩，意味着通货膨胀“将不会成为大问题”，他说道。
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