牢固的英文：
firm
secure

參考例句：
  • We should have a firm grasp of the fundamentals of mechanics.
    我們應(yīng)牢固掌握力學(xué)的基礎(chǔ)知識(shí)。
  • Sewing threads are made by twisting single yarns together to form a stronger thread.
    縫紉線是由幾股紗線合在一起紡成一股更加牢固的線。
  • Solid knowledge of wireless communication technologies such as GSM, TDMA, CDMA and 3G systems such as WCDMA and UMTS
    對(duì)無(wú)線通訊技術(shù)如GSM，TDMA，CDMA和3G系統(tǒng)如WCDMA，UMTS知識(shí)功底牢固
  • Wisconsin's independent, maverick, polyglot nature was firmly established by 1848, the year it became a state
    威斯康星的獨(dú)立不羈、自行其是、多族裔的特性是于1848年它成為一個(gè)州時(shí)就牢固形成的。
  • v. to secure or fix something firmly
    使某物牢固
  • Strong packing.
    包裝牢固。
  • The architecture of this house is very substantial.
    這座房子的結(jié)構(gòu)很牢固。
  • The struts are firmly braced.
    那些支柱上得很牢固。
  • There are a tough pair of walking boots .
    那有一雙牢固的步行靴。
  • The bureau of cherry was also high and wide and solidly built.
    那個(gè)櫻桃木柜也做得又高又大，十分牢固。
firm是什么意思：
n. 商號(hào)；企業(yè)
adj. 堅(jiān)定的；堅(jiān)固的；強(qiáng)有力的；確定的；堅(jiān)挺的；嚴(yán)格的
v. （使）堅(jiān)固；變堅(jiān)實(shí)；加強(qiáng)；使堅(jiān)定；回升
adv. 堅(jiān)定地
  • Are the firm's finances sound?
    這家公司的財(cái)務(wù)狀況可靠嗎?
  • His step was not as sharp and firm.
    他的腳步不再像從前那樣敏捷、堅(jiān)實(shí)。
  • To become firm or gelatinous; congeal.
    凝固凝結(jié)或變硬；凍結(jié)
  • To make or become firm.
    使穩(wěn)定，使變堅(jiān)固
  • make firm or secure; strengthen.
    使堅(jiān)固或安全；強(qiáng)化。
secure是什么意思：
adj. 安全的；安心的；有把握的；牢固的
v. 使安全；保證；獲得安全
  • a security guard
    安全警衛(wèi)
  • This is a secure anchorage.
    這是個(gè)安全泊地。
  • Underwrite securities
    包銷證券
  • The property was pledged as security for loans.
    這地產(chǎn)被當(dāng)作貸款的抵押。
  • Mortgage Backed Securities
    以房地產(chǎn)抵押作擔(dān)保的證券

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