✅ 同义词
🗣️ 情景例句
It's going to be a piece of cake.
这种事不费吹灰之力。
This is not an occasion for laguhter.
现在不是该笑的时候。
Fierce wars between Native Americans and European settlers broke out.
美洲土著人和欧洲殖民者之间发生了激烈的战争。