A mitotic spindle contains two structures implicated in cytokinesis furrow positioning: asters, which are radial arrays of centrosome-nucleated microtubules, and the midzone, which forms between the ...

1.Dumbledore watched the smoke closely,his brow furrowed. 邓布利多专注地望着轻烟，眉头紧锁。 2.He was biting his lip,his forehead furrowed. 只见他咬着嘴唇，前额上起了皱纹。 3.Brow furrow,which is an indicator of confusion.

Buford O. Furrow Jr. was sentenced Monday to life in federal prison in an intensely emotional court hearing, during which relatives of a slain postal worker and of five persons wounded in a shooting ...

Picture a farm or garden, and you're likely to imagine crops planted in rows. Run water between the rows and you have furrow irrigation, one of humanity's oldest methods used to grow food. It's still ...