Значения для термина "improvise when" отсутствуют.
1 In his line of work, he'd learned to improvise when things changed without warning.
2 You know how pleasant it is to be forced to improvise when one is tired!
3 I can improvise when I'm unconscious.
4 But she had to improvise when she was probed about New Zealand's trade and diplomatic ties with a Brexit-era UK.
5 Neither ships nor men can be improvised when war has begun.
6 Improvise When the exec was unmoved, Guber sprawled across the floor and acted like a mortally wounded ape.
7 We laughed when things went wrong, cheered when we succeeded, and improvised when we didn't have the exact parts the projects recommended.
8 He studied the features, very pale beneath the bloody bandage which Perris had improvised when he recovered from his battle with the stallion.
9 The elusive Winston was able to have free roam all day, utilizing seven receivers and often improvising when he sensed danger in the pocket.
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