Echocardiogram
n. 心回波图, 超声波心动图
🗣️ 情景例句
We would expect to hold them until at least the end of this year.
我们会保持这些价格不变，至少直到今年年底。
Never be weary of well doing.
行善莫厌烦。
Modern industry is based on the conception of the maximum production at lowest cost,
以最低成本获取最多产品，