Vertical migration
[计] 纵向迁移, 垂直迁移
🧩 词语组成解析
vertical
['vɝtɪkl]
adj. 垂直的，竖立的;[解]头顶的;顶点的;[植]纵长的，直上的;
n. 垂直线，垂直面;[建]竖杆;垂直位置;
vert转变+ical...的 → 转变成直的 → 垂直
migration
[mai'ɡreiʃən]
n. 迁移，移居;
🗣️ 情景例句
and they needed the extra room.
他们需要多一些空间。
Auck, don't hit me! I'm an innocent bystander.
啊呦，别整我，我只是个旁观者。
There has long been a superstition among mariners that porpoises will save drowning men by pushing them to the surface, or protect them from sharks by surrounding them in defensive formation.
长期以来，海员中流传着一种迷信的说法，认为海豚会把快要淹死的人托到水面，救人性命；或在人们周围列队保护，使他们免遭鲨鱼伤害。