gum是什么意思

双语用例

• The union now deals directly with the marketing of chewing gum.

• Made formerly of spruce gum, there was already a small demand for something to chew on.

• Given so many alternatives, different types of saps, gums, and resins may have had distinct functions.

• Effects on whole saliva of chewing gums containing calcium phosphates.

• She asked me to remind you, though, that there is to be no gum chewing while you study these rules.

• In case 2, restlessness in the mouth has been reported and the patient relieved this sensation in the mouth by chewing gum.

• This was a direct result of increasing international demand of chewing gum.

• No negotiation or sales of chewing gum could be made without the authorisation of the federation's president.