impede 雅思GREGMAT专八

What impedes your making an early start?

什么事碍你早些身？

The rescue attempt was impeded by bad weather.

营救工受到恶劣天碍。

He was impeded in his work.

他工受阻。

Luther's awkward movements impeded his progress.

卢瑟便碍了他进步。

No general rules exist for the length of basins. Someone says that"the length of a basin should not exceed 2,000 meters, elsewise transportation and navigation is impeded".

港地长度没有一般规定。但有人说港地长能超过2000米，否则就会阻碍交通。

Methods dip 2% lidocaine or impede narcosis, use the acuity exonerative plane root slot cut endodontium,after drying overlay thin hydrochloride zinc and than using the zinc phosphate to mount.

方法用2%利多卡因浸润或阻滞麻醉,用锐利挖器平根管口切断牙髓,拭干后用氢氧化钙糊剂覆盖根髓断面,硬固后,覆薄层氧化锌粘固粉,用磷酸锌粘固粉封洞。