The an emulsion of droplets between 100 and 300 nanometres ( billionths of a metre ) across.这些微粒仅宽100—300纳米 ( 一米的十亿分之一 ).That's still a few billionths of the fractional pressure changes your ear can detect.而这仍然只有你的耳...
He’s cutting grass with a scythe.他正在用一把大镰刀割草。He was very busy, putting an edge on a scythe.他正忙着干活, 在磨一把长柄大镰刀的刃儿.He's cutting grass with a scythe.他正在用一把大镰刀割草.Tom, just cut his arm with a scythe , tumbled on it in the...
"Hi," they chorused.“嗨，”他们齐声招呼道。The papers all chorused the praises of the President.各报都异口同声地对总统表示赞扬.The audience chorused its approval by loud cheering.听众们用高声欢呼来齐声表达他们的赞同....