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1.timber n.木材，木料(wood suitable for building or for carpentry)
聯想記憶：timb(看作time時間)+er--樹苗需要很長時間才能成材
例：cut timber伐木//Ancient settlers used mud and grass to build their homes, doing it without timber and nails.
2.tissue n．紙巾(soft paper)；【生】組織（形態上相似的細胞和相關的細胞間物質的集合，如：肌肉組織）（an aggregate of cells, usually of a particular kind together with their intercellular substance that form one of the structural materials of a plant or an animal)
例：Animals acquire carotenoids(類胡蘿卜素)in many ways and then store them in a variety of tissues.
3.toll n.過路（橋）費（money paid for the use of a road, bridge, etc.）；傷亡人數，損失(loss or damage caused by sth.)；v.（緩慢而有規律地）敲(to sound with slow measured strokes)
發音記憶：“痛”--受傷了，所以痛--傷亡人數
例：Whenever bridge tolls are increased, the authority must pay a private contractor to adjust the automated toll-collecting machines.
派生詞：toller(n．敲鐘人；征收通行稅的人)
4.tortoise n．烏龜，龜(turtle)
例：Researchers hypothesize that granitic soil is the ideal construction material for the desert tortoise.
5.toxic a．有毒的(poisonous)
詞根記憶：tox(毒)+ic--有毒的
例：Among birds, social learning helps them avoid toxic substances.
派生詞：nontoxic(a．無毒的)；toxicity(n．毒性)；toxication (n．中毒)
同根詞：detoxify(v.解毒)
6.toxin n.毒素，毒質(a poisonous substance)
例：Wood smoke contains dangerous toxins that cause changes in human cells.
7.tract n.一片（土地）(an indefinite stretch of land)；【解】管道(a system of body parts or organs that act together to perform some functions)
例：The erosion of valuable topsoil will reduce the crop yield of a tract of land．//a vocal tract聲道
8.tragedy n．慘事(misfortune)；災難（calamity）
例：It was a tragedy that we lost the game in the last minute.
9.trait n.特征( characteristic)；特性(a distinguishing quality)
聯想記憶：要根據每位隊員的特點(trait)進行訓練(train)
例：Special genetic traits can easily be introduced into plant strains with the use of the new techniques.//personality trait個性品質
n. 災難，不幸事件
