难以

Yet unique to Milliken, it uses PVC-free material as backings,while generally PVC,which is very hard to be biodegrade once discarded,is used as backings.

但与一般地毯使用废弃后难以降解的PVC材料作为后垫不同的是，美利肯地毯用不含PVC的材料作为后垫。

Communication between the East and the West should be promoted in order to form a solid multi-cultural base for bioethics.

将西方发达国家的伦理信条简单移植到发展中国家是难以奏效的。

When Griffith began work at Biograph, the studio was in dire straits, deep in debt and hard-pressed to meet the public's demand for new films.

当格里菲斯开始在Biograph ，演播室在惨境，深入的债务和难以满足市民的需求，新的电影。

In this sense, biographic research seems to be a simple way for overcoming the gap between the macro- and micro-perspective. But, a crucial problem in biographic research - subsumption, is hardly to resolve.

但是传记研究有一个难以解决的关键问题－「范括」，也就是研究者以自己预设的范畴作为参照架构来解析他人的叙说。

Because the human metabolic process is extremely complicated, it is particularly difficult for the analysis of the biological sample of folic acid, the ordinary analysis method is difficult to detetmine it.

由于人体代谢过程极为复杂，叶酸生物样品的分析测定尤为困难，普通的测定方法难以对其进行检测。

Some women have a terror of losing control in the birth process.

有些妇女惧怕在分娩过程中难以自制。

Fortunately, the "mercury" of the operation very well, PSP slider in the beginning of the operation although a bit difficult to control when playing; but most of the time, you can easily use this kind of operation to tilt the platform of the maze.

庆幸的是，"水银"的操作十分出色，PSP滑杆的操作虽然在初玩时有点难以控制；但是在大部分时间里，你可以轻松的利用这样的操作来倾斜整个迷宫平台。

Defeat in the election is a bitter pill for him to swallow .

在选举中失败是他难以下咽的苦果。

For the gay community, however, it was a bitter pill to swallow.

对于同性恋群体来说，这无疑是一枚难以下咽的苦果。

For the gay community, however, it was a bitter pill to swallow .

然而对于同性恋群体来说，这无疑是一枚难以下咽的苦果。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。