The props kayaks, bungee cords, belay ropes are seen as a diversion rather than a teaching tool. 小艇道具、空绳索、保绳索等被视为是种消遣娱乐,而不是种教具。
belay
[ noun ]
something to which a mountain climber's rope can be secured
<noun.object> [ verb ]
turn a rope round an object or person in order to secure it or him
<verb.contact>
fasten a boat to a bitt, pin, or cleat
<verb.contact>
Belay \Be*lay"\, v. t. [imp. & p. p. {Belaid}, {Belayed}; p. pr. & vb. n. {Belaying}.] [For senses 1 & 2, D. beleggen to cover, belay; akin to E. pref. be-, and lay to place: for sense 3, OE. beleggen, AS. belecgan. See pref. {Be-}, and {Lay} to place.] 1. To lay on or cover; to adorn. [Obs.]
Jacket . . . belayed with silver lace. --Spenser.
2. (Naut.) To make fast, as a rope, by taking several turns with it round a pin, cleat, or kevel. --Totten.
3. To lie in wait for with a view to assault. Hence: to block up or obstruct. [Obs.] --Dryden.