单词	grading ring
释义	grading ring 分段(屏蔽)环
随便看	foothill problem foot-hills foothills foothills yellow pine foothills zone foot-hold foothold foot hold foothold buying footholds foot-holds foothole foot hole foot holes footholes foothook foot-hook foot hooks foothooks foot-hot foothot footie footie, footy footier footies 插杠子插架万轴，拥书百城插柳莫教春知。插翅也飞不出去插翅也飞不过去插翅难飞，束手就擒插花枝共动，含笑靥俱生。衫分两处色，钏响一边声。插蜡烛插起招军旗，就有入伍兵插起招军旗，就有吃粮人ゴウウゴウオンゴウオンゴウカゴウカゴウカゴウカイゴウカクゴウカケンランゴウカバン