他正在环礁湖里与一只短吻鳄搏斗。He was grappling with an alligator in a lagoon.鲸会迁移6,000海里左右，到温暖的环礁湖生殖繁衍。The whales migrate some 6,000 miles to breed and calve in the warm lagoons.一环小岛围绕着礁湖.A girdle of islands enclosed the lagoon....
I wish that she would not hit the keys of the typewriter so hard.我真希望她不要那么用力敲打字机键盘。Of equipment; without a motor and intended for hand operation a manual keypunch a manual typewriter.对设备而言, 指无马达和用手操作的设备(如人工键穿孔机、人工打字机).On...