synchromesh
n[U]
device in a vehicle's gearbox that makes the parts turn at the same speed and thus allows gears to be changed smoothly (机动车齿轮箱中的)同步齿轮系.
🗣️ 情景例句
but ... but I've been noticing
但……但我注意到
She wants me to come as often as possible.
她希望我尽可能常来。
A pilot noticed a balloon which seemed to be making for a Royal Air Force Station nearby.