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1. struck down 杀死；击倒
eg .He then took a stone, struck down the division between two windows, and sprang in.
然后他拾起一块石头，敲落两扇窗户之间的窗框，跳进来了。
2. peck out 啄出：；用食指费力地慢慢地打字(多为美国记者的工作方式)：
eg That chick pecks out an earthworm from the earth.
那只小鸡从土里啄出一条蚯蚓。
3. fill with 装满，充满
eg When we inhale, our lungs fill with air, which press the diaphragm downward.
当我们吸气时，我们的肺会充满空气，空气会把隔膜往下压。
