speed up
加速；提高 (… 的) 速度
You’d better speed up a bit or we’ll be late. (你最好開快點，否則我們會遲到)
speed * up +
使加速；提高 (… 的) 速度
The medicine may have the effect of speeding up your heart rate. (這藥物可能會使你的心跳加速)
spice * up +
給 (演說、故事或表演等) 增添趣味
He’d spiced up his speech with a few off-color jokes. (他說了一些葷笑話來給自己的講話增添趣味)
Newspaper reports tend to spice up the real story. (新聞報導通常喜歡加油添醋)
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