keyboard instrument 键盘乐器
killer1 whale 虎鲸；逆戟鲸
know better 明事理；有头脑
know next to nothing of...几乎一无所知
laden2 with 充满
later years 晚年
lava3 cave 熔岩洞
lawn sprinkler 草坪撒水器
lay claim to 宣称有...
lead out 开始；出发
learn by rote4 死记硬背地学习
leave no sort of trace没留下任何痕迹
let off 放等
liberal arts 人文科学
life cycle 生命周期
light bulb 灯泡
light court 天窗
link...to... 与...连接起来
literary output 文学作品
living quarters 住处
lock system 河闸控制系统
long johns 长内衣裤
look into 研究
lose consciousness 失去知觉
lose sight of 忘记；忽视；不再看见
love affair 恋爱
Lower World 下界
loyal to 效忠于
lubricating oil 润滑油
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