2. forum   noun   

原句: The forum through which governments establish rules to protect wildlife.

意思: a place where people can exchange opinions and ideas on a particular issue; a meeting organized for this purpose

字源: late Middle English (in sense 2): from Latin, literally what is out of doors, originally denoting an enclosure surrounding a house; related to fores ‘(outside) door’. Sense 1 dates from the mid 18th cent. 

例句: Television is now an important forum for political debate.



3. retention   noun [uncountable]   

原句: Forbid the retention and trade of white-tip and hammerhead shark species in order to increase their survival.

意思:
a. the action of keeping sth rather than losing it or stopping it
b. the action of keeping liquid, heat, etc. inside sth rather than letting it escape
c. the ability to remember things

字源: late Middle English (denoting the power to retain something): from Old French, from Latin retentio(n-), from retinere ‘hold back’, from re- ‘back’ + tenere ‘hold’. 

例句:
a. The company needs to improve its training and retention of staff.
b. Eating too much salt can cause fluid retention.
c. Visual material aids the retention of information.



4. tactile   adjective   

原句: Tablets, lacking a mouse or a keyboard, are better for tasks that have simpler tactile and visual elements.

意思: connected with the sense of touch; using your sense of touch

字源: early 17th cent. (in the sense ‘perceptible by touch, tangible’): from Latin tactilis, from tangere ‘to touch’. 

例句: He's a very tactile man.



5. for/in the foreseeable future   idiom   

原句: Tablets are likely to lag behind netbooks and laptops for the forseeable future.

意思: for/in the period of time when you can predict what is going to happen, based on the present circumstances 

例句: The statue will remain in the museum for the foreseeable future.