登录
a structure built from a shoreline into a body of water, usually made of concrete or stone, that serves to protect the coast or provide a docking point for boats
码头, 栈桥
a person, typically young, who regularly engages in illegal or immoral behavior
青少年罪犯, 违法者
a device used to amplify sound, typically for public speaking or making announcements
扩音器, 喇叭
to treat someone unfairly or cruelly, often because of their race, gender, religion, or beliefs
迫害, 追害
a short-barreled, muzzle-loaded artillery piece that fires explosive shells at high angles for close-range support
迫击炮, 火箭炮
a bag for carrying on the back, usually used by people who go hiking or soldiers
背包, 背囊
the highest degree given by a university
博士学位, 博士
made impure or polluted by harmful substances, bacteria, or viruses
受污染的, 被污染的
a small boat made of rubber or wood that It is used for fun or to travel short distances
小艇, 橡皮艇
so sad that makes comforting very difficult
沮丧的, 无法安慰的
