绝大多数日冕物质抛射看起来是球根形的、宽的；而这次日冕则是很窄的并且包裹住的。
Most coronal mass ejections are more bulbous and wide: this one is quite narrow and contained.
剩余脊髓灰质炎流行地区的强劲进展和最近采用新的工具已经在全世界除一个国家外的所有国家将全球根除脊髓灰质炎努力推进至其最后阶段。
Strong advances in the remaining polio endemic areas and the recent introduction of new tools have moved the global polio eradication effort into its final phase in all but one country of the world.
球根状白色的头在市区路灯上面散发着红光。
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