at full/half throttle idiom
以全速／半速;尽全力／以一半的力量
at full/half speed or power
He's working at full throttle (= as hard as he can) to get the job finished. 他正全力以赴完成工作。
The captain of the boat had his engines at full throttle. 船长让船开足马力全速行驶。