Sonalert
固體音調(diào)發(fā)生器
??? 情景例句
It was a gradual process, involving many factors.
這是個(gè)漸進(jìn)的過(guò)程，涉及到方方面面。
We should weep for men at their birth and not a t their death.
我們應(yīng)在人降生時(shí)流淚，而不該在人死亡時(shí)哭泣。
For hundreds of years, St.Bernard dogs have saved the lives of travellers crossing the dangerous Pass.
幾百年來(lái)，圣伯納德修道院馴養(yǎng)狗拯救了許多翻越這道山口的旅游者的生命。