Pentafluoride
五氟化物
🗣️ 情景例句
With pleasure. Now we can offer Optical Mark Readers of models.
很愿意。目前我们能提供光学记录阅读器的模型。
Whom will you send that to?
你将把那个送给谁？
it is extremely difficult to estimate the true value of the services which people perform for us.
但要估算别人为我们为所提供的服务的价值却是极其困难的。