The machine needs a complete ______ since it has been in use for over ten years.A．maintain

The machine looked like a large, ___, o？／

The machine looked like a large, ___,？

The machine looked like a large, ___, old－fashion

COMPLETE THE CARD WITH THE WORDS AND EXPRESSIONS GIVEN IN THE BOX._You need to include t

The machine has stopped rotating because the bearing _____ the shaft.A.seizedB.cloggedC.me

Speaker A: The experiment has been completed, hasnt it？ Speaker B: ______A．Yes. We need an