a ship with a reinforced bow to break up ice and keep channels open for navigation
a beginning that relaxes a tense or formal atmosphere
双语例句
Icebreaker Nutcracker now has to break a channel for the convoy of ships to get through the thicker ice. 破冰船必须为船舶编队开好航道，以通过坚冰区。
Probably formed on the side of the Finnish icebreaker Tarmo, a feather-edged loaf of ice floats in the Gulf of Finland. 芬兰湾里漂来一块羽毛状的冰块，它可能是在芬兰破冰船塔尔莫号的边上形成的。
