“环”造句

石墨层中的碳原子相互连接形成碳环。
In graphite sheets, carbon atoms bond together in rings.

他正在环礁湖里与一只短吻鳄搏斗。
He was grappling with an alligator in a lagoon.

赢得观看环法自行车赛最后阶段比赛之旅！
Win a trip to see the finish of the Tour de France!