所有的目光都集中在一个狭窄的试管上，里面三分之二装着黑色的粘性液体，试管被夹在机器的两个联结器之间。

All eyes were fixed on a narrow test tube — two-thirds filled with a viscous black liquid — clamped between two couplings on the machine.

youdao

所有的目光都集中在一个狭窄的试管上，里面三分之二装着黑色的粘性液体，试管被夹在机器的两个联结器之间。

All eyes were fixed on a narrow test tube — two-thirds filled with a viscous black liquid — clamped between two couplings on the machine.

youdao