watertight:不漏水的
a watertight ship
watertight:引申为无懈可击的,毫无破绽的
a watertight arguments无懈可击的论点
watertight excuse:毫无破绽的借口
waterproof 防水的

flood v.
be filled with water;the ship is flooded
The room is flooded with moonlight.
n.洪水 in flood 河水泛滥，引申表示连续不断的
During the rains,the river is in flood.在雨季的时候，这条河流总是泛滥成灾。
in a flood of words滔滔不绝的
She blamed her husband in a flood fo words on seeing him.

tragic:unfortunate;a tragic accident
miserable苦难的 bitter 痛苦的
tragedy n.悲剧，惨案
in tragedy以悲剧形式
The holiday ended in tragedy.
comedy喜剧 comic喜剧的，滑稽的
comical古怪的

voyage海上航行
flight飞行
journey长途行程
The voyage is more than the old lady can bear.

collide v.碰撞，抵触
The plane collided with the moutain.
crash v.坠毁
conflict:v.和某事或某人相抵触
Mu idea conflicts with yours.
clash v.相冲突
His wedding clashed with my exam so I couldn't go.

tremble有规律的、小幅度的抖动
shiver强调由于寒冷、惧怕而一连串的抖动
shudder强调全身的战栗

faint:week
faint sound ;faint vioce
faint:unconscious失去知觉
slight轻微的，微不足道的
a slight headache

abandon抛弃
因为某事而被迫放弃自己喜欢的事物
desert背弃，遗弃

plunge 投入，跳入
jump 侧重强调快速的跳
leap 跳跃
dive跳水，潜水

The great ship,Titanic,sailed for...

sail for 航海去往某处
set out for
leave for
head for
make for
Eg:He will set out for the Atlantic.
The plane is making for the airport.
We are heading for Cananda.

She was carrying....
carry表示载有 a crew of 一组人员

by regulation依据规则
by our estimate根据我们的估计
according to 依据（事实、课文等客观存在的现实）而不能依据主观的猜测
according to the fact 依据事实
according to the text依据这篇课文

在我看来：in my opinion

according to/in accordance with
in accordance with 更加正式，依据法律
in accordance with law
in accordance with rules

At that time在当时

not only....but(also)..不仅，而且

be regarded as:be considered to be,be thought of as把....看作为
eg:I regarded his idea as totally unacceptable.
We can't regard the matter as settled.

for表示原因

be able to 强调有能力

be remembered被永远记住

with heavy loss of life损失惨重，造成大批人员的死亡

Even by....
by:according to 表示依据

....spotted...:suddenly discovered by a lookout

the alarm had been given发出警报

to avoid不定式表目的

narrowly勉强的

from below从下方
from above从上方

...so faint that no one thought that....

to one's horror使某人感到惊骇
to one's surprise 使某人感到惊讶

The order was given命令被下达